Atomic Structure Review/Learning Targets KEY
... Describe the nucleus of an atom and what makes it up. The nucleus is the densely packed center of the atom that is made up of protons and neutrons. Identify how to determine the mass of an atom. Add the protons and neutrons together is determine the mass. Explain what the electron cloud of an atom i ...
... Describe the nucleus of an atom and what makes it up. The nucleus is the densely packed center of the atom that is made up of protons and neutrons. Identify how to determine the mass of an atom. Add the protons and neutrons together is determine the mass. Explain what the electron cloud of an atom i ...
The Structure of the Atom- Chapter 4, 3
... 1910 Rutherford discovers the nucleus through the gold foil experiment and that atoms are mostly _____________________ . Rutherford’s Atomic Model (sphere with dense middle center called the _________________ with electrons dispersed around it. ...
... 1910 Rutherford discovers the nucleus through the gold foil experiment and that atoms are mostly _____________________ . Rutherford’s Atomic Model (sphere with dense middle center called the _________________ with electrons dispersed around it. ...
atomic mass
... The periodic law states that when elements are arranged in order of increasing __________ _________, similarities in their properties occur in a regular pattern. a) Atomic mass b) Atomic number c) Atomic radius Moseley created the modern periodic table when he determined that elements should be pla ...
... The periodic law states that when elements are arranged in order of increasing __________ _________, similarities in their properties occur in a regular pattern. a) Atomic mass b) Atomic number c) Atomic radius Moseley created the modern periodic table when he determined that elements should be pla ...
Chemistry Worksheet: Atomic Structure and Isotopes
... a. 78 protons in the nucleus of each atom. b. 42 electrons in each uncharged atom. c. 18 electrons in each +2 cation. d. 10 electrons in each -1 anion. Identify the isotope in each of the following. Give the appropriate symbol and name. Use the mass number in the name of the isotope as was done in 1 ...
... a. 78 protons in the nucleus of each atom. b. 42 electrons in each uncharged atom. c. 18 electrons in each +2 cation. d. 10 electrons in each -1 anion. Identify the isotope in each of the following. Give the appropriate symbol and name. Use the mass number in the name of the isotope as was done in 1 ...
atomic number
... • An isotope is often written with the element name followed by the mass number. ...
... • An isotope is often written with the element name followed by the mass number. ...
2 Atomic Theory Development of Theory • Historical Atomic Models
... the apparent charge of an atom in the molecule. Some oxidation numbers can often be found from the atom’s location on the periodic table, Group 1 is +1, Group 2 is +2, H is +1 (or -1 in hydrides), O is -2 (-1 is peroxides), in binary ionic compounds the halogens are -1. Otherwise the oxidation numbe ...
... the apparent charge of an atom in the molecule. Some oxidation numbers can often be found from the atom’s location on the periodic table, Group 1 is +1, Group 2 is +2, H is +1 (or -1 in hydrides), O is -2 (-1 is peroxides), in binary ionic compounds the halogens are -1. Otherwise the oxidation numbe ...
Chapter 4 Chemical Foundations: Elements, Atoms, and Ions
... • Atoms of a given element are different from those of any other element. – Carbon atoms have different chemical and physical properties than sulfur atoms. ...
... • Atoms of a given element are different from those of any other element. – Carbon atoms have different chemical and physical properties than sulfur atoms. ...
Electron Dot Diagrams
... row of the Periodic Table your element is in. Elements in the first row (hydrogen and helium) have one energy level, those in the second row will have two energy levels and so on. Draw a circle to represent the nucleus of the atom. Write the symbol for the element, the number of protons and the numb ...
... row of the Periodic Table your element is in. Elements in the first row (hydrogen and helium) have one energy level, those in the second row will have two energy levels and so on. Draw a circle to represent the nucleus of the atom. Write the symbol for the element, the number of protons and the numb ...
AHSGE Review
... Groups are together because the elements in them have similar properties and react in the same manner. Across periods (left to right), atomic radius (size) decreases, ionization energy (ease of losing an electron) increases, and electronegativity (ability to attract electrons) increases. ...
... Groups are together because the elements in them have similar properties and react in the same manner. Across periods (left to right), atomic radius (size) decreases, ionization energy (ease of losing an electron) increases, and electronegativity (ability to attract electrons) increases. ...
Test 2 Review - Chemistry
... e- at higher nrg states are not stable These e- want to return to their ground state to become stable ◦ Lowest possible nrg level ...
... e- at higher nrg states are not stable These e- want to return to their ground state to become stable ◦ Lowest possible nrg level ...
Week 9 CCA Test Review
... Why do elements with similar valence level of electrons have similar chemical properties? They will react the same way, because they ...
... Why do elements with similar valence level of electrons have similar chemical properties? They will react the same way, because they ...
Atomic Structure
... they fired Helium nuclei at a piece of gold foil which was only a few atoms thick. ...
... they fired Helium nuclei at a piece of gold foil which was only a few atoms thick. ...
elements and compounds
... responsible for organizing the Periodic Table as we see it today. It is organized in order of an increasing atomic mass. He also grouped elements that bonded alike and had similar properties – he even predicted a few. ...
... responsible for organizing the Periodic Table as we see it today. It is organized in order of an increasing atomic mass. He also grouped elements that bonded alike and had similar properties – he even predicted a few. ...
Name - Madison County Schools
... A. Who first arranged the periodic table by atomic mass? Dmitri Mendeleev B. What characteristics did Mendeleev use to place the elements in order when creating the periodic table? Rows - Increasing mass Columns – Similar properties C. What are valence electrons? Electrons in the highest occupied en ...
... A. Who first arranged the periodic table by atomic mass? Dmitri Mendeleev B. What characteristics did Mendeleev use to place the elements in order when creating the periodic table? Rows - Increasing mass Columns – Similar properties C. What are valence electrons? Electrons in the highest occupied en ...
Atomic structure
... which was only a few atoms thick. they found that although most of them passed through. About 1 in 10,000 hit ...
... which was only a few atoms thick. they found that although most of them passed through. About 1 in 10,000 hit ...
Mixtures, Pure Substance and Isotopes
... By the end of this lesson you should be able to… • Solve isotope questions regarding their sub-atomic particles, notation and nomenclature ...
... By the end of this lesson you should be able to… • Solve isotope questions regarding their sub-atomic particles, notation and nomenclature ...
Elements Elements (cont.) Elements (cont.)
... • A compound is a distinct substance that is composed d off atoms t off two t or more elements. l t • Compounds are identified by the number and type of each atom in the simplest unit of the compound. – Molecules or ions ...
... • A compound is a distinct substance that is composed d off atoms t off two t or more elements. l t • Compounds are identified by the number and type of each atom in the simplest unit of the compound. – Molecules or ions ...
Atoms and Elements Class Notes and Class Work
... Modern Periodic Law: States that when elements are arranged in order of increasing atomic number, elements with similar properties occur at regular intervals. (Sometimes every 8 or 18 etc.) i.e. Elements with similar properties occur periodically. The State of Elements: · Most elements are solid at ...
... Modern Periodic Law: States that when elements are arranged in order of increasing atomic number, elements with similar properties occur at regular intervals. (Sometimes every 8 or 18 etc.) i.e. Elements with similar properties occur periodically. The State of Elements: · Most elements are solid at ...
Unit 3 Atomics Review SCIENTIFIC THEORIES Dalton theorized that
... ions that have lost electrons, therefore having more positive protons than negative electrons. Anions are negative ions that have gained electrons and then have fewer protons than electrons. a. How many valence electrons does Sodium have? ________ b. How many valence electrons does fluorine have? __ ...
... ions that have lost electrons, therefore having more positive protons than negative electrons. Anions are negative ions that have gained electrons and then have fewer protons than electrons. a. How many valence electrons does Sodium have? ________ b. How many valence electrons does fluorine have? __ ...
V. Chemical reactions
... e. How is the number of protons determined? by atomic number f. How is the number of neutrons determined? subtract atomic number from mass number g. How is the number of electrons determined in a neutral atom? Equal to the number of protons B) The nucleus a. What subatomic particles are located in t ...
... e. How is the number of protons determined? by atomic number f. How is the number of neutrons determined? subtract atomic number from mass number g. How is the number of electrons determined in a neutral atom? Equal to the number of protons B) The nucleus a. What subatomic particles are located in t ...
Atomic Structure
... The number of electrons in a neutral atom is equal to the number of protons Neutral oxygen has 8 protons, therefore it has 8 electrons Neutral lead has 82 protons, therefore, it has 82 electrons ...
... The number of electrons in a neutral atom is equal to the number of protons Neutral oxygen has 8 protons, therefore it has 8 electrons Neutral lead has 82 protons, therefore, it has 82 electrons ...
Atoms, Isotopes, and Ions
... In this skill sheet, you will learn about isotopes, which are atoms that have the same number of protons but different numbers of neutrons. You will also learn about ions, which are atoms that have the same number of protons and different numbers of electrons. What are isotopes? In addition to its a ...
... In this skill sheet, you will learn about isotopes, which are atoms that have the same number of protons but different numbers of neutrons. You will also learn about ions, which are atoms that have the same number of protons and different numbers of electrons. What are isotopes? In addition to its a ...
PowerPoint Presentation - The Atom: Chp 12 sect 2
... the same, • although the physical properties of some isotopes may be different. • Some isotopes are radioactivemeaning they "radiate" energy as they decay to a more stable form, • perhaps another element half-life: time required for half of the atoms of an element to decay into stable form. ...
... the same, • although the physical properties of some isotopes may be different. • Some isotopes are radioactivemeaning they "radiate" energy as they decay to a more stable form, • perhaps another element half-life: time required for half of the atoms of an element to decay into stable form. ...
