Chemiscabulary terms

Match the definition to the word below:

"The smallest unit of matter."

• Proton

• Atom

• Ion

• Nucleus

Match the definition to the word below:

"An element that has the same number of protons as the original but a different number of neutrons."

• Atom

• Ion

• Isotope

• Molecule

What part of the nucleus makes it positively charged?

• Cation

• Electron

• Neutron

• Proton

Match the definition to the word below:

"An atom or a group of atoms with a positive electric charge."

• Anion

• Cation

• Electron

• Proton

The red electrons are examples of:

• Anions

• Cations

• Isotopes

• Valence electrons

Match the definition to the word below:

"The size of an atom, can be found by the addition of its protons and neutrons."

• Atomic mass

• Atomic number

• Isotope

• Valence electrons

Choose the CORRECT definition for the following term:

Atomic number

• The combined number of protons and neutrons in an atoms nucleus.

• The number of electrons in an atom.

• The number of protons in an atom.

• The number of valence electrons in an atom.

Choose the CORRECT definition for the following term:

Ion

• An atom or molecule with an electric charge.

• An atom with matching numbers of protons and electrons.

• An atom or molecule with more neutrons than protons.

• An atom with two or more valence electrons.

Sodium chloride is an example of:

• An atom

• An electron

• An isotope

• A molecule

Match the definition to the word below:

"An elementary particle with a negative charge and a very small mass"

• Anion

• Cation

• Electron

• Proton