Radioactive Isotopes and Nuclear Equations
... Radioactive Decay, Nuclear Equations, and Half-Lives I. View the “Nuclear Energy” video II. Radioactive Isotopes and Nuclear Equations Atoms are composed of three subatomic particles: protons, neutrons and electrons. Protons and neutrons are found in the nucleus of an atom. The total number of proto ...
... Radioactive Decay, Nuclear Equations, and Half-Lives I. View the “Nuclear Energy” video II. Radioactive Isotopes and Nuclear Equations Atoms are composed of three subatomic particles: protons, neutrons and electrons. Protons and neutrons are found in the nucleus of an atom. The total number of proto ...
Elements and Atoms
... Ex: Na-23 contains 11 electrons and 11 protons Mass Number = the sum of protons and neutrons of an atom Mass Number = # of protons (P) + # of neutrons (N) ...
... Ex: Na-23 contains 11 electrons and 11 protons Mass Number = the sum of protons and neutrons of an atom Mass Number = # of protons (P) + # of neutrons (N) ...
Atom The smallest piece of matter that still has the properties of the
... A table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure and similar chemical properties appear in vertical columns. ...
... A table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure and similar chemical properties appear in vertical columns. ...
The Periodic Table of Elements
... small (in the one trillionth of a billionth range) and is very difficult to work with. So instead we express the mass of atoms in atomic mass units (amu). • One amu is equal to 1/12th of the mass of a carbon-12 atom. – This isotope has exactly 6 protons and 6 neutrons so the mass of each has to be a ...
... small (in the one trillionth of a billionth range) and is very difficult to work with. So instead we express the mass of atoms in atomic mass units (amu). • One amu is equal to 1/12th of the mass of a carbon-12 atom. – This isotope has exactly 6 protons and 6 neutrons so the mass of each has to be a ...
Name
... Atoms of different elements can _________________mix together or ___________________ combine. Chemical reactions occur when atoms are__________________, _________________, or _________________________. ...
... Atoms of different elements can _________________mix together or ___________________ combine. Chemical reactions occur when atoms are__________________, _________________, or _________________________. ...
ch2_objectives
... 9. Define the terms energy and potential energy. Explain why electrons in the first electron shell have less potential energy than electrons in higher electron shells. 10. Distinguish among nonpolar covalent, polar covalent and ionic bonds. 11. Explain why strong covalent bonds and weak bonds are b ...
... 9. Define the terms energy and potential energy. Explain why electrons in the first electron shell have less potential energy than electrons in higher electron shells. 10. Distinguish among nonpolar covalent, polar covalent and ionic bonds. 11. Explain why strong covalent bonds and weak bonds are b ...
Elements and Atoms
... 3. Electrons (e-) = (negative charge) move nearly the speed of light form a cloud around the nucleus ...
... 3. Electrons (e-) = (negative charge) move nearly the speed of light form a cloud around the nucleus ...
Atomic Numbers Notes
... “Learn to enjoy the little things – there are so many of them.” 1. What does this quote mean to you? 2. How can you practice this in your everyday life? 3. How does this apply to Chemistry? ...
... “Learn to enjoy the little things – there are so many of them.” 1. What does this quote mean to you? 2. How can you practice this in your everyday life? 3. How does this apply to Chemistry? ...
File
... Electrons, protons, and neutrons constitute the basic building blocks of atoms, both stable and radioactive. The electron is the smallest of these three particles. Its mass, me, is 9.1091 x10-28 g. The mass of the electron, me, is used as a unit of mass. The neutrino is a very unusual particle. It h ...
... Electrons, protons, and neutrons constitute the basic building blocks of atoms, both stable and radioactive. The electron is the smallest of these three particles. Its mass, me, is 9.1091 x10-28 g. The mass of the electron, me, is used as a unit of mass. The neutrino is a very unusual particle. It h ...
Section 4.2 The Structure of an Atom
... Monitoring Your Understanding Before you read, list in the table shown what you know about atoms and what you would like to learn. After you read, list what you have learned. For more information on this Reading Strategy, see the Reading and Study Skills in the Skills and Reference Handbook at the e ...
... Monitoring Your Understanding Before you read, list in the table shown what you know about atoms and what you would like to learn. After you read, list what you have learned. For more information on this Reading Strategy, see the Reading and Study Skills in the Skills and Reference Handbook at the e ...
Foldable - Georgetown ISD
... Isotopes: atoms with the same atomic # but with a different mass # or a different # of neutrons. Example: Name in ...
... Isotopes: atoms with the same atomic # but with a different mass # or a different # of neutrons. Example: Name in ...
Exemplar exam question – Chapter 2
... The first answer is probably worthy of only 1 mark as it does not make clear that isotopes are different atoms of the same element. The second answer would probably score 0. Although the idea of the same element and different number of neutrons is mentioned, the student has not mentioned different a ...
... The first answer is probably worthy of only 1 mark as it does not make clear that isotopes are different atoms of the same element. The second answer would probably score 0. Although the idea of the same element and different number of neutrons is mentioned, the student has not mentioned different a ...
04 Atoms_ molecules _ ions
... • Review PPs 1 – 4 • Work the attached assignment & turn it in tomorrow. ...
... • Review PPs 1 – 4 • Work the attached assignment & turn it in tomorrow. ...
Keypoints of Basic Atomic Structure
... Atomic Number Atomic Radius Electrons Element Isotope Neutrons Periodic Table Protons Subatomic Particles Concepts 1. Be able to describe how protons, neutrons and electrons are arranged in an atom. 2. Be able to list the charges on the subatomic particles that make up and atom, and giv ...
... Atomic Number Atomic Radius Electrons Element Isotope Neutrons Periodic Table Protons Subatomic Particles Concepts 1. Be able to describe how protons, neutrons and electrons are arranged in an atom. 2. Be able to list the charges on the subatomic particles that make up and atom, and giv ...
Topic Review: Nuclear Chemistry 1. The stability of an isotope
... Topic Review: Nuclear Chemistry 1. The stability of an isotope depends on the ratio of protons to neutrons in the nucleus. Most nuclei are stable, but some are unstable. These nuclei will spontaneously decay, emitting radiation. Stable isotopes of small atoms have a 1:1 ratio of protons and neut ...
... Topic Review: Nuclear Chemistry 1. The stability of an isotope depends on the ratio of protons to neutrons in the nucleus. Most nuclei are stable, but some are unstable. These nuclei will spontaneously decay, emitting radiation. Stable isotopes of small atoms have a 1:1 ratio of protons and neut ...
Atomic Timeline
... protons & neutrons (an atom is divisible, it is the smallest part of an element) 2. Atoms of on element cannot be converted into atoms of another element by a chemical reaction (nuclear reactions, alter the composition of the nucleus, so convert atoms of one element into ...
... protons & neutrons (an atom is divisible, it is the smallest part of an element) 2. Atoms of on element cannot be converted into atoms of another element by a chemical reaction (nuclear reactions, alter the composition of the nucleus, so convert atoms of one element into ...
Lecture 1: Basic Concepts: Atoms and Bonding
... chemical characteristics and are studied using a mass spectrograph or spectrometer. Most elements have at least two naturally occurring isotopes. • Isobars are nuclides that have the same mass number but different atomic numbers. For example, 36S and 36Ar are isobars; they both contain a total of ...
... chemical characteristics and are studied using a mass spectrograph or spectrometer. Most elements have at least two naturally occurring isotopes. • Isobars are nuclides that have the same mass number but different atomic numbers. For example, 36S and 36Ar are isobars; they both contain a total of ...
Chemical Bonding
... • Atoms are the smallest units of matter. They are the building blocks of everything. • The subatomic particles that make up atoms are protons, neutrons, and electrons. • Protons=Positive charge • Neutrons=Neutral charge • Electrons=Negative charge ...
... • Atoms are the smallest units of matter. They are the building blocks of everything. • The subatomic particles that make up atoms are protons, neutrons, and electrons. • Protons=Positive charge • Neutrons=Neutral charge • Electrons=Negative charge ...
chapter 7 – cyu
... 4. German physicist Eugen Goldstein detected rays coming from the anode. Since an atom is electrically neutral, there must be an opposite charge to the electron that existed. This positive charge came from the proton. A proton is positive and has a large mass in comparison to an electron. ...
... 4. German physicist Eugen Goldstein detected rays coming from the anode. Since an atom is electrically neutral, there must be an opposite charge to the electron that existed. This positive charge came from the proton. A proton is positive and has a large mass in comparison to an electron. ...
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.