HELPP!!Pick one substance and compare two of the atoms connected to each other. 1.Are they close or far away from each other on the periodic table?

2.So they have similar atomic radii?

3.Do they have a large or small difference in ionization energy?what about for electron affinity?

the catch is that the top numbers are atomic masses the bottom numbers are the numbers of protons and electrons in an uncharged atom. they are the number of that atoms as you would find them on the periodic table. further, the numbers on the left are used to determine the missing numbers on the right

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

Idon't see the pic?

Idon't know hope someone you