!! parts of 5.2.1

Question 1

which group in the periodic table has a full outer shell/ energy level

Answer 1

group 0

noble gases

Question 2

what happens in ionic bonding

Answer 2

elements react in order to achieve a full outer energy level

by doing this they achieve the electronic structure of noble gas

Question 3

what reacts during ionic bonding

Answer 3

a metal and a non-metal

Question 4

what charge ion do group 1 metals form

Answer 4

lose 1 electron forming a 1+ ion

achieves a full outer shell

Question 5

what charge ion do group 7 non-metals form

Answer 5

gain 1 electron forming a 1- ion

achieves a full outer shell

Question 6

Na + Cl —> [Na]+ + [cl]-

(plus dot and cross electrons drawn)

describe what is happening in this reaction

Answer 6

one electron passes from the sodium atom to the chlorine atom

and both atoms achieve a full outer shell

Question 7

why do atoms have no charge

Answer 7

because they contain an equal numbers of positive protons and negative electrons

Question 8

what charge ion do group 6 non-metals form

Answer 8

gain 2 electrons forming a 2- charge

achieves a full outer shell

Question 9

what charge ion do group 1 metals form

Answer 9

lose 2 electrons forming a 2+ charge

achieves a full outer shell

Question 10

why does a magnesium ion, with 12 electrons, that formed reacting with oxygen have a 2+ charge

Answer 10

still has 12 protons but now only has 10 electrons (gave 2 away to form oxide ion) giving it a 2+ charge