M1 Topic 4 Bonding

Question 1

what is the octet rule

Answer 1

atoms gain lose or share electrons in order to have a fully valent shell

Question 2

Characteristic of ionic compounds (2)

Answer 2

between metals and non metals

have a lattice structure that are alternating + and -

Question 3

what happens when elements are ionically bonded

Answer 3

the metal loses electrons and the non metal gains electrons

Question 4

what is hydroxide’s symbol

Answer 4

OH⁻

Question 5

what is nitrates’s symbol

Answer 5

NO₃⁻

Question 6

what is acetates symbol

Answer 6

CH3COO⁻

Question 7

what is hydrogen carbonates symbol

Answer 7

HCO₃⁻

Question 8

what is nitrite’s symbol

Answer 8

NO₂⁻

Question 9

what is carbonate’s symbol

Answer 9

CO₃²⁻

Question 10

what is chromate’s symbol

Answer 10

CrO₄²⁻

Question 11

what is dichromate’s symbol

Answer 11

Cr₂O₇²⁻

Question 12

what is sulfates symbol

Answer 12

SO₄²⁻

Question 13

what is sulfite’s symbol

Answer 13

SO₃²⁻

Question 14

what is phosphates symbol

Answer 14

PO₄³-

Question 15

what is ammonium’s symbol

Answer 15

NH₄⁺

Question 16

what are the characteristics of covalent bonding (3)

Answer 16

creates molecular compounds
share electrons
two non metals

Question 17

what happens between elements that are covalently bonded

Answer 17

the elements share electrons to get an fully valent outer shell

Question 18

characteristics of covalent network solids (4)

Answer 18

High melting point
Very strong
Doesn’t dissolve
Continuous in definitively in 3 dimensions in a lattice or network

Question 19

types of molecule shapes (5)

Answer 19

linear
bent
tirgonal planar
trigonal pyramidal
tetrahedral

Question 20

how do you get a polar molecule

Answer 20

covalent bonding between unlike atoms

Question 21

why do metals atoms bond with each other

Answer 21

delocalisation of the valence electrons

Question 22

what is an allotrope

Answer 22

the property of some chemical elements to exist in two different forms