POP QUIZ ATOMIC STRUCTURE

The symbol Z is represents the particles of ________

• protons

• neutrons

• electrons

• positrons

Choose the atom that has the highest number of neutrons

• ¹⁴C

• ¹⁰Be

• ¹⁸O

• ¹¹B

Identity of each element is based on the number of _____________

• atoms

• nucleons

• neutrons

• protons

The relative mass of an electron is _______________

• 1 amu

• 5 x 10^-2 amu

• 5 x 10^-4 amu

• 5 x 10^-28 amu

An atom contains particles which have no charge and are called _______________

• Protons

• Neutrons

• Electrons

• Nuclei

Anions are ions that have a _______________ net charge

• positive

• negative

• neutral

• single

An atom form positively charged particles when it

• removes electrons from it valence shells.

• removes protons from it nucleus

• receives electrons into its valence shells.

• receives protons into its nucleus.

A species ⁷Q^3- has

• seven electrons

• ten electrons

• four electrons

• three electrons

The nucleon number (atomic mass) of an atom is determined by the _______

• number of protons.

• number of protons and electrons.

• number of neutrons.

• number of protons and neutrons.

Isotopes are atoms with a variables number of __________

• atoms

• ions

• protons

• neutrons