Which atom has five electrons in its outer level and 10 electrons in the inner energy levels

Oxygen47Hydrogen63

Silicon28Oxygen25.5

Aluminum7.9Carbon9.5

Iron4.5Nitrogen1.4

Calcium3.5Calcium0.31

Sodium2.5Phosphorus0.22

Potassium2.5Chlorine0.03

Magnesium2.2Potassium0.06

Titanium0.46Sulfur0.05

Hydrogen0.22Sodium0.03

Carbon0.19Magnesium0.01

All others<0.1All others<0.01 Living matter

law of conservation of matter

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer