Basic Chemistry

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Nucleus
Protons (+1) & Neutrons (0)
1 of 5
Molecules in an atom
Electrons (-1): First Shell- Maximum 2 electrons. All other shells- Maximum 8 electrons
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Reactivity
If the last shell on an atom is full the element is not going to be reactive because it doesnt want to gain or lose any electrons.
3 of 5
Mass Number
The mass number is the amount of protons and neutrons e.g. 13 protons, 27 mass number= 14 neutrons
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Atomic Number
The atomic number is the amount of protons and electrons in the element
5 of 5

Other cards in this set

Card 2

Front

Electrons (-1): First Shell- Maximum 2 electrons. All other shells- Maximum 8 electrons

Back

Molecules in an atom

Card 3

Front

If the last shell on an atom is full the element is not going to be reactive because it doesnt want to gain or lose any electrons.

Back

Preview of the back of card 3

Card 4

Front

The mass number is the amount of protons and neutrons e.g. 13 protons, 27 mass number= 14 neutrons

Back

Preview of the back of card 4

Card 5

Front

The atomic number is the amount of protons and electrons in the element

Back

Preview of the back of card 5

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