Answer:
15
Explanation:
Atomic mass refers to the sum of protons and neutrons in the nucleus of an atom. So protons are 7and neutrons 8. 7+8=15
Answer:The Continental Congress was a group of delegates who worked together to act on behalf of the North American colonies in the 1770s. Beginning with the Sugar Act in 1764, the British Parliament passed a series of laws that were unpopular with many colonists in the North American colonies.
Explanation: hope this helps