Positive (+1) - What is the charge of a proton?, negative (-1) - What is the charge of an electron?, 8 - The first shell holds 2 electrons. How many electrons can the other shells hold?, 11 - How many protons are there in this sodium atom?, False - All atoms have the same number of protons and neutrons. True or false?, 4 - If Beryllium has 4 protons, how many electrons will it have to have no charge?, -2 - If an ion has 9 positive protons and 11 negative electrons, what overall charge will it have?, protons and neutrons - What determines an atoms mass?, protons - What determines an atoms identity?, true - Both protons and neutrons are located in the nucleus., nucleus - Where are neutrons located?, outer shell - Where are valence electrons located?, protons / electrons - Atomic number for a neutral atom , neutral - What is the charge of a neutron?, cation - If an atom has lost electrons what is this called?, neutrons - What subatomic particles is changed in an isotope?, one has more neutrons - Oxygen - 16 and oxygen - 18 are different because,

Lockhart: Atoms, Ions, Isotopes (2)

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