3.1.3 - bonding

Question 1

how are ions formed?

Answer 1

when electrons are transferred from one atom to another

Question 2

equations showing the formation of a cation
(sodium)

Answer 2

Na = Na+ + e-

Question 3

equations showing the formation of an anion
(chlorine)

Answer 3

Cl + e- = Cl-

Question 4

what do elements in the same group have in common?

Answer 4

they all have the same number of outer elctrons

Question 5

what is the trend of charges of ions in the same group?

Answer 5

when elements in the same group form ions, they all have the same charge

Question 6

what charge ions would group one elements form?

Answer 6

1+ ions

Question 7

what charge ions would group seven elements form?

Answer 7

1- ions

Question 8

what are compound ions?

Answer 8

ions made up of groups of atoms with an overall charge

Question 9

examples of compound ions

Answer 9

ammonium, carbonate, hydroxide, nitrate, sulfate

Question 10

ionic formula for an ammonium ion

Answer 10

(NH4)+

Question 11

ionic formula for a carbonate ion

Answer 11

(CO3)2-

Question 12

ionic formula for a hydroxide ion

Answer 12

OH-

Question 13

ionic formula for a nitrate ion

Answer 13

(NO3)-

Question 14

ionic formula for a sulfate ion

Answer 14

(SO4)2-