Atoms

Question 1

Proton

Answer 1

Relative mass = 1mu
Relative charge = +1
Position inside atom = nucleus

Question 2

Neutron

Answer 2

Relative mass = 1mu
Relative charge = 0
Position inside atom = nucleus

Question 3

Electron

Answer 3

Relative mass = 1/1836 mu
Relative charge = -1
Position inside atom= electron shell

Question 4

Mass number

Answer 4

The amount of protons and neutrons in the nucleus of the atom

Question 5

Atomic number

Answer 5

The amount of protons in nucleus

Question 6

Is the amount of protons always the same or different to the amount of electrons in neutrally charged objects?

Answer 6

The amount of protons and electrons are always the same as then there is an equal amount of positive and negative charge in the atom, so it’s neutral.

Question 7

Ion

Answer 7

A charged particle in which there aren’t the same amount of protons and electrons

Question 8

What type of ion does an atom that loses an electron become?

Answer 8

Positive as there are more protons than electrons

Question 9

What type of ion is an atom the gains an electron become?

Answer 9

Negative as there are more electrons than protons

Question 10

What are the + ions?

Answer 10

Sodium Na+
Lithium Li+
Potassium K+

Question 11

What are the 2+ ions

Answer 11

Calcium Ca2+
Magnesium Mg2+
Barium Ba2+

Question 12

What are the 3+ ions?

Answer 12

Aluminium Al3+

Question 13

What are the - ions?

Answer 13

Hydrogen H-
Fluoride F-
Chloride Cl-
Iodide I-
Bromide Br-

Question 14

What are the 2- ions?

Answer 14

Oxide O2-
Sulfide S2-

Question 15

What are the 3- ions?

Answer 15

Nitride N3-

Question 16

isotope

Answer 16

an atom with the same amount of protons and electrons but not neutrons

Question 17

relative atomic mass

Answer 17

the average mass of an element’s atoms compared to 1/12 the mass of a carbon atom

Question 18

formula to calculate relative atomic mass

Answer 18

(( I1 mass x I1 % abundance) + ( I2 mass x I2 % abundance)) / 100

Question 19

how to find the electronic configuration of an element from position on periodic table

Answer 19

Atomic (proton) number = number of electrons so whatever number it is on the periodic table, just put that number into the electronic config of 2882 and draw it.