Topic 1 : Water

Question 1

Kinetic Particle Theory

Answer 1

All matter is made up of tiny particles (i.e. atoms, ions, molecules). There are attractive forces between the particles. The particles are in constant and random motion

Question 2

Electron

Answer 2

Negative charged particle located outside the nucleus

Question 3

Proton

Answer 3

Positively charged particle, located in the nucleus

Question 4

Neutron

Answer 4

No charge, similar in mass to a proton, located in the nucleus

Question 5

Nucleus

Answer 5

Central core made of protons & neutron, has a positive charge

Question 6

Electron Shell

Answer 6

Orbitals that contain various levels of energy that only contain electrons

Question 7

Lattice - Crystalline Structure

Answer 7

3D structure of atoms, is made of 2 or more molecules that are different sizes. They are held together by ionic bonds

Question 8

Element

Answer 8

Substance that cannot be broken down into a smaller substance

Question 9

Compound

Answer 9

Substance containing two or more elements chemically bonded together

Question 10

Atom

Answer 10

Smallest particle an element can be divided into

Question 11

Molecule

Answer 11

Group of atoms covalently bonded together

Question 12

Atomic Number

Answer 12

Number of protons contained in the nucleus of the atom

Question 13

Covalent Bonds

Answer 13

Mutual sharing of one or more pairs of electrons between two atoms

Question 14

Ionic Bonds

Answer 14

Forms when an atom/molecule loses electron(s) from its outer shell, becoming positively charged and is attracted to the newly formed negative ion (the atom/molecule that gained the electron(s)).

Question 15

Positive Ion

Answer 15

Contains more protons than electrons

Question 16

Negative Ion

Answer 16

Contains more electrons than protons