Explain what is happening to molecules in the chemical reaction shown here. Helpful vocabulary: the number of atoms, reactant, rearrange. product.
2KF + BaBr, → BaFe + 2KBr
Your answer

d

Explanation:

Explain what is happening to molecules in the chemical reaction shown here. Helpful vocabulary: the

number of atoms, reactant, rearrange. product.

2KF + BaBr, → BaFe + 2KBr

Your answer

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8