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ANP
Chemistry of Life
Question | Answer |
---|---|
The number of protons plus the number of neutrons | Atomic weight (mass) |
A combination of two or more atoms of different elements | Compound |
A small, negatively charged particle that orbits the nucleus | Electron |
An atom that has gained or lost electrons, and thus carries an electrical charge | Ion |
Atoms are held together by sharing electrons | Covalent bond |
The most fundamental substance of mater. | Nucleus |
A substance that combines with hydrogen ions | Base |
A molecule that influences the rate of chemical reactions but is not consumed in the reaction. | Catalyst (enzyme) |
Two atoms with the same atomic number but different atomic weights | Isotopes |
A substance that releases ions in water | Electrolyte |
The number of protons in an atom | Atomic number |
The area of an atom where protons and neutrons are located | Elements |