I want to check my answers to see if i got them right what do you think?
A.
How many electron...
Chemistry, 23.02.2021 23:30 applejulianamoreno
I want to check my answers to see if i got them right what do you think?
A.
How many electrons are in a neutral atom of lithium?
B.
How many neutrons are in an atom of Mg-25?
C.
What is the mass number of an atom with 5 protons and 7 neutrons?
D.
When an atom is charged, it is called an ion. How many electrons are in O2-?
E.
How many electrons are in Mg2+?
Answers: 2
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