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Periodic Table
10
atom : the basic unit of a chemical element.
nucleus : the central and most important part of an object, movement, or group, forming the basis for its activity and growth.
proton : a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign.
neutrons : a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.
electrons : a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
quarks : any of a number of subatomic particles carrying a fractional electric charge, postulated as building blocks of the hadrons.
electron cloud : an informal term in physics. It is used to describe where electrons are when they go around the nucleus of an atom.
atomic number : the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.
mass number : the total number of protons and neutrons in a nucleus.
isotopes : each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties; in particular, a radioactive form of an element.
Periodic Table
Across:5. | a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids. | 6. | the basic unit of a chemical element. | 7. | the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table. | 8. | an informal term in physics. It is used to describe where electrons are when they go around the nucleus of an atom. | 9. | a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign. | 10. | the total number of protons and neutrons in a nucleus. |
| | Down:1. | any of a number of subatomic particles carrying a fractional electric charge, postulated as building blocks of the hadrons. | 2. | a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen. | 3. | each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties; in particular, a radioactive form of an element. | 4. | the central and most important part of an object, movement, or group, forming the basis for its activity and growth. |
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Periodic Table
Across:5. | a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids. | 6. | the basic unit of a chemical element. | 7. | the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table. | 8. | an informal term in physics. It is used to describe where electrons are when they go around the nucleus of an atom. | 9. | a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign. | 10. | the total number of protons and neutrons in a nucleus. |
| | Down:1. | any of a number of subatomic particles carrying a fractional electric charge, postulated as building blocks of the hadrons. | 2. | a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen. | 3. | each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties; in particular, a radioactive form of an element. | 4. | the central and most important part of an object, movement, or group, forming the basis for its activity and growth. |
| |
© 2014
PuzzleFast.com, Noncommercial Use Only