Question

Can someone please give answers to these questions:

Answer 1

Explanation:

10.its atomic election configuration is 1s^22s^22p^63s^23p^64s^1.

Answer 2

Answer:

As these masses are too small, it is not convenient touse kilograms or grams as a unit.

Therefore, it is more appropriate to use mass of some standard atom as a unit and then relate the masses of other atoms to it.

Thus resulting atomic masses are called as 'relative atomic masses.'

Explanation:

hope it's helpful to you