Basic Chemistry 1

• Chemistry
• Upper Secondary (Key Stage 4)
• GCSE

Revision Chemistry

What is the atomic number of carbon?

1. 6
2. 10
3. 8
4. 12

Which subatomic particle has a negative charge?

1. Positron
2. Electron
3. Proton
4. Neutron

What is the chemical symbol for gold?

1. Au
2. Cu
3. Ag
4. Pt

What is the pH of a neutral solution?

1. 5
2. 12
3. 7
4. 9

Which gas is produced during photosynthesis?

1. Methane
2. Nitrogen
3. Carbon dioxide
4. Oxygen

What is the nucleus of an atom made of?

1. Protons and neutrons
2. Neutrons and electrons
3. Electrons and protons
4. Protons and photons

Which scientist is credited with the discovery of the atom?

1. Newton
2. Democritus
3. Einstein
4. Aristotle

What is the charge of an electron?

1. Negative
2. Neutral
3. Variable
4. Positive

What is the approximate size of an atom?

1. 10^5 meters
2. 10^-15 meters
3. 10^-5 meters
4. 10^-10 meters

What is the atomic number of an element based on?

1. Number of neutrons
2. Number of electrons
3. Number of protons
4. Number of isotopes

What is an ion?

1. An element with a high atomic number
2. An atom with a positive or negative charge
3. A molecule formed by covalent bonding
4. A compound made of two or more elements

Which type of ion has gained electrons?

1. A cation
2. An anion
3. A polyatomic ion
4. A neutral ion

What charge does a cation have?

1. A neutral charge
2. A positive charge
3. A variable charge
4. A negative charge

How are ions formed?

1. By the sharing of protons
2. By the splitting of neutrons
3. By the loss or gain of electrons
4. By the fusion of nuclei