Atomic Theory Vocabulary Pretest

This particle is found in the nucleus and has no charge

• Neutron
• Proton
• Electron
• Orbital

This particle is found in the nucleus and has a positive charge

• Electron
• Proton
• Neutron
• Neutral

This is a negatively charged particle found outside the nucleus

• Electron
• Proton
• Neutron
• Orbital

What are atoms with the same number of protons but different numbers of neutrons?

• electrons

• protons

• neutrons

• isotopes

What are any of the various self-contained units of matter or energy that are fundamental parts of all matter. These particles include electrons, protons, and neutrons.

• subatomic particles

• elements

• nucleus

• electron cloud

Isotopes of the same element contain the same number of protons but different number of...

• neutrons
• electrons
• both
• neither

an anion contains what charge

• neutral

• positve

• negative

• partial

The total number of Protons and Neutrons.

• Mass Number
• Atomic Number
• Matter
• Ion

An atom that has become charged by gaining or losing electrons.

• Ion
• Isotope
• Electron
• Valence Electron

subatomic particles found on the outermost shell & responsible for the atom's reactivity

• neutrons
• valence electrons
• isotopes
• ions