Chapter 5 Notes
... 1. All elements are composed of tiny indivisible particles called atoms. 2. Atoms of the same element are identical. The atoms of any one element are different from those of any other element. ...
... 1. All elements are composed of tiny indivisible particles called atoms. 2. Atoms of the same element are identical. The atoms of any one element are different from those of any other element. ...
File
... without changing direction very much • Because… – The positive charges were spread out evenly alone they would not be enough to stop the alpha particles ...
... without changing direction very much • Because… – The positive charges were spread out evenly alone they would not be enough to stop the alpha particles ...
Atomic Theory Part 1
... The complete atomic symbol‟s mass number‟ (A) and the respective Element‟s „box weight‟ in the periodic table do NOT convey the same information. The complete atomic symbol denotes the mass of ONE isotope of the element in amu, while the p. table gives is the average mass of ALL isotopes of the elem ...
... The complete atomic symbol‟s mass number‟ (A) and the respective Element‟s „box weight‟ in the periodic table do NOT convey the same information. The complete atomic symbol denotes the mass of ONE isotope of the element in amu, while the p. table gives is the average mass of ALL isotopes of the elem ...
Atomic Theory 1
... The complete atomic symbol’s mass number’ (A) and the respective Element’s ‘box weight’ in the periodic table do NOT convey the same information. The complete atomic symbol denotes the mass of ONE isotope of the element in amu, while the p. table gives is the average mass of ALL isotopes of the elem ...
... The complete atomic symbol’s mass number’ (A) and the respective Element’s ‘box weight’ in the periodic table do NOT convey the same information. The complete atomic symbol denotes the mass of ONE isotope of the element in amu, while the p. table gives is the average mass of ALL isotopes of the elem ...
Chapter 2
... • Fractional abundance: fraction of a total number of atoms, which consists of a particular isotope • Isotopic mass is not exactly equal to mass number – Neon-20, mass = 19.992 amu, abund = 0.9051 – Neon-21, mass = 20.994 amu, abund = 0.0027 – Neon-22, mass = 21.991 amu, abund = 0.0922 • Multiply is ...
... • Fractional abundance: fraction of a total number of atoms, which consists of a particular isotope • Isotopic mass is not exactly equal to mass number – Neon-20, mass = 19.992 amu, abund = 0.9051 – Neon-21, mass = 20.994 amu, abund = 0.0027 – Neon-22, mass = 21.991 amu, abund = 0.0922 • Multiply is ...
25.3 section summary
... Nuclear fission occurs when fissionable isotopes are bombarded with neutrons. The fissionable atom breaks into two fragments of about the same size, and in the process they release more neutrons and energy. Neutron moderation is the process that reduces the speed of neutrons. Sometimes water is used ...
... Nuclear fission occurs when fissionable isotopes are bombarded with neutrons. The fissionable atom breaks into two fragments of about the same size, and in the process they release more neutrons and energy. Neutron moderation is the process that reduces the speed of neutrons. Sometimes water is used ...
Atomic Structure Timeline
... • Lab procedures were developed, but alchemists did not perform controlled experiments like true scientists. ...
... • Lab procedures were developed, but alchemists did not perform controlled experiments like true scientists. ...
Atoms Development of the Atomic Theory
... atoms join with other atoms to make new substances called compounds Atoms of different elements are different atoms of the same element are exactly alike, and atoms of different elements are different in mass and size (elements) ...
... atoms join with other atoms to make new substances called compounds Atoms of different elements are different atoms of the same element are exactly alike, and atoms of different elements are different in mass and size (elements) ...
Physical Science – Chapter 4 Study Guide
... Physical Science – Chapter 4 Study Guide What word did the Greek philosopher Democritus coin for a tiny piece of matter that cannot be divided? Know and understand John Dalton’s atomic theory. Know and understand J.J. Thomson’s experiments with the atom. Who provided evidence for the existence of a ...
... Physical Science – Chapter 4 Study Guide What word did the Greek philosopher Democritus coin for a tiny piece of matter that cannot be divided? Know and understand John Dalton’s atomic theory. Know and understand J.J. Thomson’s experiments with the atom. Who provided evidence for the existence of a ...
All you need to know about Additional Science
... If we have a solution containing 100 g of sodium hydroxide, how much chlorine gas should we pass through the solution to make bleach? Too much, and some chlorine will be wasted, too little and not all of the sodium hydroxide will react. ...
... If we have a solution containing 100 g of sodium hydroxide, how much chlorine gas should we pass through the solution to make bleach? Too much, and some chlorine will be wasted, too little and not all of the sodium hydroxide will react. ...
Chapter 7 Worksheet
... 19. Alpha radiation is a stream of alpha particles that have the same combination of particles as the nucleus of a helium atom, with a mass number of 4 and an atomic number of 2 . 20. Alpha particles are made up of ...
... 19. Alpha radiation is a stream of alpha particles that have the same combination of particles as the nucleus of a helium atom, with a mass number of 4 and an atomic number of 2 . 20. Alpha particles are made up of ...
Atomic Theory and Atomic Structure Test Topics Atomic Theory and
... Atomic Theory and Atomic Structure Test Topics Be able to determine the atomic number, mass number, number of protons, number of neutrons, and number of electrons in an atom. Know vocabulary, like atomic number, protons, neutrons, electrons, isotopes, mass number, energy levels, orbitals, electron c ...
... Atomic Theory and Atomic Structure Test Topics Be able to determine the atomic number, mass number, number of protons, number of neutrons, and number of electrons in an atom. Know vocabulary, like atomic number, protons, neutrons, electrons, isotopes, mass number, energy levels, orbitals, electron c ...
Atomic Structure
... 2. Atoms of the same element are identical. Atoms of different elements differ. 3. Atoms cannot be divided, created, nor destroyed. 4. Atoms combine in simple whole number ratios to form compounds. 5. Atoms are rearranged, separated, or combined in chemical reactions. ...
... 2. Atoms of the same element are identical. Atoms of different elements differ. 3. Atoms cannot be divided, created, nor destroyed. 4. Atoms combine in simple whole number ratios to form compounds. 5. Atoms are rearranged, separated, or combined in chemical reactions. ...
History of The Atom
... 3. The atoms of a given element are different from those of any other element; the atoms of different elements can be distinguished from one another by their respective relative weights. D. 4. Atoms of one element can combine the atoms with atoms of other elements to form chemical compounds; a given ...
... 3. The atoms of a given element are different from those of any other element; the atoms of different elements can be distinguished from one another by their respective relative weights. D. 4. Atoms of one element can combine the atoms with atoms of other elements to form chemical compounds; a given ...
Atomic Structure Atoms. Summary Atomic Number.
... The mass of a neutron and a proton are the same. An electron is very much smaller, about 1/2000th the size of a proton, although it has an equal and opposite electrical charge. The electrons, although tiny, take up most of the space of an atom. This means that most of the space of an atom contains h ...
... The mass of a neutron and a proton are the same. An electron is very much smaller, about 1/2000th the size of a proton, although it has an equal and opposite electrical charge. The electrons, although tiny, take up most of the space of an atom. This means that most of the space of an atom contains h ...
Atomic Structure
... Find the numbers of protons, neutrons, and electrons in the following elements. Then name the most common isotope of each. ...
... Find the numbers of protons, neutrons, and electrons in the following elements. Then name the most common isotope of each. ...
Ions + Isotopes
... • The mass of an atom is determined using the number of protons and neutrons in it. (electrons are ignored) • Since the masses of atoms are so small in conventional mass units, like grams, we use a unit that is equivalent to the mass, in grams, of a proton. ...
... • The mass of an atom is determined using the number of protons and neutrons in it. (electrons are ignored) • Since the masses of atoms are so small in conventional mass units, like grams, we use a unit that is equivalent to the mass, in grams, of a proton. ...
Atom
... • Atoms of an element don’t always have the same # of neutrons. • These atoms are called isotopes. ...
... • Atoms of an element don’t always have the same # of neutrons. • These atoms are called isotopes. ...
ATOMIC THEORY
... However, atoms of the same element can have different numbers of neutrons. Atoms of the same element (i.e., atoms with the same number of protons) with different numbers of neutrons are called isotopes . Most naturally occurring elements exist as isotopes. For example, most hydrogen atoms have a sin ...
... However, atoms of the same element can have different numbers of neutrons. Atoms of the same element (i.e., atoms with the same number of protons) with different numbers of neutrons are called isotopes . Most naturally occurring elements exist as isotopes. For example, most hydrogen atoms have a sin ...
Isotope
Isotopes are variants of a particular chemical element which differ in neutron number, although all isotopes of a given element have the same number of protons in each atom. The term isotope is formed from the Greek roots isos (ἴσος ""equal"") and topos (τόπος ""place""), meaning ""the same place""; thus, the meaning behind the name it is that different isotopes of a single element occupy the same position on the periodic table. The number of protons within the atom's nucleus is called atomic number and is equal to the number of electrons in the neutral (non-ionized) atom. Each atomic number identifies a specific element, but not the isotope; an atom of a given element may have a wide range in its number of neutrons. The number of nucleons (both protons and neutrons) in the nucleus is the atom's mass number, and each isotope of a given element has a different mass number.For example, carbon-12, carbon-13 and carbon-14 are three isotopes of the element carbon with mass numbers 12, 13 and 14 respectively. The atomic number of carbon is 6, which means that every carbon atom has 6 protons, so that the neutron numbers of these isotopes are 6, 7 and 8 respectively.