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1. Main group elements react so they end up with a. more electrons than they sta

ID: 836278 • Letter: 1

Question

1. Main group elements react so they end up with

a. more electrons than they start with.

b. fewer electrons than they start with.

c. the same number of electrons as their group number.

d.eight valence electrons.

2. In forming an ion, a potassium (K) atom should

give up one electron.

accept seven electrons.

give up seven electrons.

accept one electron.

3. Which of the following is not soluble in water?

iron (II) bromide, FeBr2

iron (III) nitrate, Fe(NO3)3

iron (III) hydroxide, Fe(OH)3

potassium sulfide, K2S

4. Which one of the following substances is produced during an acid-base neutralization reaction?

NaOH

CO2

H2O

H2

4.

a.

give up one electron.

b.

accept seven electrons.

c.

give up seven electrons.

d.

accept one electron.

Explanation / Answer

1) d.eight valence electrons.

2) a. give up one electron.

3) c.iron (III) hydroxide, Fe(OH)3

4) c. H2O