Atoms and Compounds

Question 1

What is an Element

Answer 1

Elements are the fundamental materials of which all matter is composed. They are distinguished by the amount of protons, also called atomic number.

Question 2

What is an Atom

Answer 2

Everything is made up of matter and all matter is made of atoms. All atoms are made of protons and neutrons in the nucleus and electrons in the outer shell.

Question 3

What are compounds

Answer 3

Compounds are chemical substances made up of 2 or more elements that are chemically bound

Question 4

Types of Compounds

Answer 4

Ionic and Covalent

Question 5

Ionic Compounds

Answer 5

Ionic Compounds are created by a positive ion and a negative ion being attracted to one another. This occurs when a metal and a non-metal bond. E.g. Sodium + Chlorine = Sodium Chloride

Question 6

Covalent Compounds

Answer 6

Covalent compounds are created when elements share electrons in their outer shell to gain a full outer shell. E.g. Carbon + Oxygen = Carbon Dioxide

Question 7

Polyatomic Ions

Answer 7

A groups of ions bonded together

Question 8

Monatomic Ion

Answer 8

A monatomic ion is an ion consisting of exactly one

Question 9

Ionic Bonds

Answer 9

formed between two or more atoms by the transfer of one or more electrons between atoms

Question 10

Covalent Bonds

Answer 10

A covalent bond is a chemical bond that involves the sharing of electrons to form electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs. The stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.

Question 11

What is an ion

Answer 11

an atom or molecule with a net electric charge due to the loss or gain of one or more electrons