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0

What is meant by reaction rate?

The Reaction rate is a term used to describe the speed at which a chemical reaction occurs

1

What formula can be used to express the rate of a reaction?

Reaction rate = Change in quantity of reactant or product *over* change in time

2

What four variables can alter the rate of a reaction?

Catalyst
Temperature
Concentration
Particle Size

3

What is the position, relative atomic mass and Charge of a proton particle?

Proton
_______
Nucleus
1
+1

4

What is the position, relative atomic mass and charge of a Neutron particle?

Neutron
________
Nucleus
1
0

5

What is the position, relative atomic mass and charge of an electron particle?

Electron
________
Outside the nucleus
Almost 0
-1

6

What sub atomic particle is positively charged?

A proton

7

What sub atomic particle is neutral? (No charge)

Neutron

8

What sub atomic particle is negatively charged?

An electron

9

When using nuclide notation, how would you work out the number of protons?

Look at the atomic number.

10

When using nuclide notation, how would you work out the number of neutrons?

Mass number-atomic number
= neutrons

11

When using nuclide notation, how would you work out the number of electrons?

Look at the atomic number.

12

How much electrons can the first outer shell hold in an atom?

Up to 2

13

How much electrons can the second and third shells of an atom hold, respectively.

8

14

Are metal ions positively charged or negatively charged?

Positively charged.

15

Are non-metal ions positively or negatively charged?

Negatively charged.

16

What is an Isotope?

Isotopes are atoms with the same atomic number but a different mass number.

17

State 2 different ways in how atoms can achieve a stable electron arrangement.

Transfer electrons (ionic bonding)
Or
Share electrons (covalent bonding)