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Science 3 Atoms
atoms
Question | Answer |
---|---|
What is a proton? | a positively charged particle that resides within the atomic nucleus. |
what is a neutron? | a subatomic particle contained in the atomic nucleus. |
what is an electron? | a fundamental particle, which means it cannot be broken into smaller particles. |
what is atomic mass? | The mass of an atom, usually expressed in atomic mass units. |
what is a neucleus? | a membrane bound structure that contains the cell's hereditary information and controls the cell's growth and reproduction. |
what is an electron cloud? | the group of electrons revolving around the nucleus of an atom. |
what is an atomic #? | the number of positive charges or protons in the nucleus of an atom of a given element, and therefore also the number of electrons normally surrounding the nucleus. |
what is a mass #? | the integer nearest in value to the atomic weight of an atom and equal to the number of nucleons in the nucleus of the atom. |