Biology Quiz 2.1: The Nature of Matter

The atomic number of cobalt is _________.

The mass number of cobalt is _________.

The Neutron number of cobalt is _________.

The Electron number of cobalt is _________.

The proton number of cobalt is _________.

What is matter?

• Anything with mass

• Anything with energy

• Anything with volume

• Anything with mass and volume

• Anything with mass and energy

Atoms of the same element that differ in the number of neutrons they contain are known as _________.

• isotopes

• ions

• molecules

• electrons

What quality of an atom makes a particular element?

• The number of neutrons in the nucleus

• The number of protons in the nucleus

• The number of electrons it has

• The number of bonds it can make

Covalent bonds are when two or more atoms bond by ​ (a)   electrons.

Ionic bonds form when two or more atoms ​ (b)   electrons.

• sharing
• transfer

What is the name of a weak, short-lived bond between molecules that can fit close to each other? It is being used by the animal shown.

• covalent bond

• electron sharing

• van der waal forces

• temporary bond force