Homework Questions For Chapter 2

Covalent Bonds hold atoms together because they..

In molecules, C, H, O and N atoms usually make __,___,____, and ___ bonds respectively.

an atoms atomic number is 7. Its valence is most likely

By making two covalent bonds, an O atom (w/ 8 protons) fills its valence shell. Why does the atom's charge stay close to zero?

In a double covalent bond, a carbon atom shares..

The ammonia molecule in the diagram has the observed bond orientation because...

Without making or breaking bonds, the pictured molecule can change its shape b/c

Two C atoms form a double bond. Each C is bound to two H atoms. Which statement is true?

Partial charges occur when

To fill the valence shell, an electrically, neutral, unbonded atom with atomic number 8 must add