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10 Cards in this Set
- Front
- Back
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Calcium Symbol- ________ |
Ca |
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Calcium Atomic Number- ________ |
20 |
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Calcium Period- _________ |
4 |
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Calcium Number of shells- __________ |
4 |
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Calcium Group/family number- __________ |
2 |
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Calcium Number of valence electrons- __________ |
2 |
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valence electrons |
number of electrons in the outermost shell of an atom |
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How are the groups arranged on the periodic table? |
up and down/ in columns |
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How are the periods arranged on the periodic table? |
left and right/ in rows |
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atomic number |
number of protons in an atom |
