For each atom in the table below, write down the subshell from which an electron would have to be removed to make a +1 cation, and the subshell to which an electron would have to be added to make a -1 anion. The first row has been completed for you. atom H Na Ar Cd subshell from which electron removed to form +1 cation 1s 0 0 subshell to which electron added to form -1 anion X 1s 0 0 0 5 ob Ar

When sodium reacts with chlorine to form an ionic compound, each metal atom loses _____ electron(s) and each nonmetal atom gains _____  electron(s).   There must be ___(1,2,3) sodium atom(s) for every ___ (1,2,3) chlorine atom(s) in the reaction.

For each atom in the table below, write down the subshell from which an electron would have to be removed to make a +1 cation, and the subshell to which an electron would have to be added to make a -1 anion. The first row has been completed for you.

A monatomic ion with a charge of -2 has an electronic configuration of 1s22s22p63s23p64s23d104p65s24d105p6.This ion is a(n) _______cation anion.What is the chemical symbol of the noble gas this ion is isoelectronic with? Xe.What is the formula of the ion? Ba2+.

For each atom in the table below, write down the subshell from which an electron would have to be removed to make a +1 cation, and the subshell to which an electron would have to be added to make a -1 anion. The first row has been completed for you. atom H Ca Zn I subshell from which electron removed to form +1 cation 1s 0 0 subshell to which electron added to form -1 anion x 1s 0

Determine the number of valence electrons for each of the following atoms. Enter each answer as a numeral. For example, if an atom has two valence electrons, enter the numeral 2. а) Вe b) Al с) О d) Ar