periodic table

Question 1

why are noble gases unreactive in terms of electron configuration

Answer 1

the do not react because they have a complete valence shell (outer shell)

Question 2

what happens when a metal combines with a non-metal to form ionic compound

Question 3

how to calculate neutrons

Answer 3

the rounded atomic mass - atomic number = number of neutrons

Question 4

what determines where an element is on the periodic table

Answer 4

number of protons determines where an element is on the periodic table because number of protons never change

Question 5

what do groups on the periodic table in common

Answer 5

they have similar chemical and physical properties

Question 6

what do elements in the same period have in common

Answer 6

elements in the same period have the same amount of electron shells

Answer 7

groups 1-3 will lose electrons

Answer 8

groups 5-7 will gain electrons (group 4 is covalent bonding)