DEFENITIONS - Atoms,Bonds and Groups

Question 1

Avagadro’s Constant

Answer 1

6.022x10^23 mol^-1

Question 2

Base

Answer 2

A Species that is a Proton Receiver

Question 3

ion

Answer 3

A Positive or Negatively charged Atom

Question 4

Relative Isotopic Mass

Answer 4

The Mass of an Atom of an Isotope compared with 1/12 of the Mass Of Carbon-12

Question 5

Species

Answer 5

Any type of particle that takes part in a reaction

Question 6

Salt

Answer 6

A chemical compound formed when a an acid gives off a H+ Ion and a metal ion goes in its place

Question 7

OIL RIG

Answer 7

Oxidation Is Loss / Reduction Is Gain

Question 8

Sub - Shell

Answer 8

A group of atomic orbitals within a shell

Question 9

Water of Crystallisation

Answer 9

Water Molecules that form an essential part off crystalline structure of a compound.

Question 10

Hydrated

Answer 10

Crystalline and containing water

Question 11

Electron Shielding

Answer 11

The repulsion between electrons within the shells

Question 12

Covalent Bond

Answer 12

A Bond formed by a shared pair of electrons.

Question 13

Anion

Answer 13

A negatively charged ion

Question 14

Cation

Answer 14

A positively charged ion

Question 15

Activation Energy

Answer 15

The minimum energy required for a reaction to start

Question 16

Empirical formula

Answer 16

The simplest whole ratio of atoms

Question 17

Group

Answer 17

The columns of the periodic table

Question 18

Period

Answer 18

The rows of the periodic table

Question 19

Endothermic

Answer 19

When heat is taken in

Question 20

Exothermic

Answer 20

When heat is given off

Question 21

Oxidation

Answer 21

The loss of electrons

Question 22

Reduction

Answer 22

The gain of electrons