Plz help it over science stuff

asked Mar 26, 2022 40.2k views

15 votes

by Uhef

7.6k points

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9 votes

Answer:

Pretty sure it would be 69(nice).

Step-by-step explanation:

You add the number of protons and neutrons to find the mass

Nloewen answered Mar 29, 2022

7.9k points

6 votes

Answer:9.012

Step-by-step explanation:

I used the periodic table, the mass is 9.012

Bhollis answered Mar 31, 2022

8.0k points

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