1 c) Atomic Structure

Question 1

Atomic Number

Answer 1

Number of protons

Question 2

Electron

Answer 2

Subatomic particle found in shells outside the nucleus with a relative mass of 1/1836 and a relative charge of 1-.

Question 3

Isotopes

Answer 3

Atoms of the same element with the same number of protons but a different number of neutrons.

Question 4

Mass Number

Answer 4

Number of protons and neutrons

Question 5

Molecule

Answer 5

Two or more atoms covalently bonded together with a fixed number of atoms.

Question 6

Neutron

Answer 6

Subatomic particle found in the nucleus of an atom with a relative mass of 1 and no charge.

Question 7

Proton

Answer 7

Subatomic particle found in the nucleus of an atom with a relative mass of 1 and a relative charge of 1+.

Question 8

Relative Atomic Mass

Answer 8

The weighted average mass of the isotopes of the element, relative to the mass of 1/12th of a C-12 atom.

Question 9

Atom

Answer 9

Smallest piece of an element that can still be recognised as that element.

Question 10

Diatomic

Answer 10

Molecule that contains two atoms (HOBrFINCl)

Question 11

Isoelectronic

Answer 11

Same number of electrons

Question 12

Nucleon Number

Answer 12

Same as mass number

Question 13

Nucleus

Answer 13

Contains protons and neutrons in an atom.

Question 14

Particle

Answer 14

Small object can be referred to as atoms, molecules, ions or the subatomic particles.

Question 15

Proton Number

Answer 15

Same as atomic number

Question 16

Relative Isotopic Mass

Answer 16

The mass of one particular isotope of the element, relative to the mass of 1/12th of a C-12 atom.

Question 17

Shells

Answer 17

Where electrons are found outside the nucleus (also called energy levels).

Question 18

Weighted Average

Answer 18

An average which takes into account the percentage abundance of the components.