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Presentation transcript:

Check for Understanding Valence Electrons

How many valence electrons does sodium (Na) have?

1 valence electron

How many valence electrons does fluorine (F) have?

7 valence electrons

How many valence electrons does silicon (S) have?

4 valence electrons

How many valence electrons does xenon (Xe) have?

8 valence electrons

Chlorine (Cl) has the most similar chemical properties as: a) Neon b) Sodium c) Iodine d) Calcium

Chlorine (Cl) has the most similar chemical properties as: a) Neon b) Sodium c) Iodine d) Calcium Chlorine and Iodine both have 7 valence electrons, and are therefore in the same family and have similar chemical properties.

Barium (Ba) has the most similar chemical properties as: a) Argon b) Magnesium c) Oxygen d) Lithium

Barium (Ba) has the most similar chemical properties as: a) Argon b) Magnesium c) Oxygen d) Lithium Barium and magnesium both have 2 valence electrons, and are therefore in the same family and have similar chemical properties.