11. The part of an atom that has an overall positive charge is called
A) an electron B) the nucleus
C) the first shell D) the valence shell

C- the first shell otherwise known as the inner shell

Explanation:

This will always have 2 electrons:)

what does the table look like

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