Question

can someone answer this questions?​

Answer 1

Explanation:

(b) three

(c) electron

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Answer 2

Answer:

1 ) 2 valence electrons

2) protons

Explanation:

1) Magnesium has atomic number 12. Its electronic configuration is 2,8,2 . Thus, it has 2 valence electrons.

2)

There are three subatomic particles: protons, neutrons and electrons. Two of the subatomic particles have electrical charges: protons have a positive charge while electrons have a negative charge.