RSHS 2020 Year 8 Science/Chemistry Formative 2

An atom is

• Sub-atomic particle that has

  a negative charge

• Electrons in the outer-most

  shell of an atom

• The total number of particles in the nucleus

• The smallest particle of a chemical element

An element is

• The total number of particles

  in the nucleus

• A substance which cannot be separated into simpler substances

• The smallest particle of a chemical element

• Sub-atomic particle that has no charge

A neutron is ...

• Sub-atomic particle that has a no charge

• Sub-atomic particle that has a negative charge

• The total number of particles

  in the nucleus

• Sub-atomic particle that has a positive charge

A proton is ...

• Electrons in the outer-most

  shell of an atom

• Sub-atomic particle that has no charge

• Sub-atomic particle that has a positive charge

• The number of protons in an atom

An electron is

• The biggest particle of a chemical

  element

• Sub-atomic particle that has a negative charge

• The smallest particle of a chemical element

• Sub-atomic particle that has a positive charge

The atomic number is

• The number of protons in an atom

• Atoms that have the same number of protons but different numbers of neutrons

• The total number of particles in the nucleus

• The smallest particle of a chemical element

The atomic mass is ..

• Sub-atomic particle that has a positive charge

• Elements that border the stair-stepped line on the periodic table.

• Atoms that have the same number of protons but different numbers of neutrons

• The total number of particles

  in the nucleus

An isotope is ....

• Sub-atomic particle that has a negative charge

• Atoms that have the same

  number of protons but different numbers of neutrons

• The smallest particle of a chemical element

• Elements located to the right of the periodic table (exception Hydrogen)

valence electrons are

• Sub-atomic particle that has no charge

• Sub-atomic particle that has

  no charge

• Electrons in the outer-most

  shell of an atom

• Elements located to the left of the periodic table

metals are

• Elements located to the left of the periodic table.

• Sub-atomic particle that has no charge

• Elements that border the stair-stepped line on the periodic table.

• The smallest particle of a chemical element