Atomic Structure

Which particle has a positive charge?

• electron
• orbital
• proton
• neutron

Choose the particle that has no charge.

• nucleus
• neutron
• proton
• electron

This particle determines what element you have - the elements identity.

• electron
• proton
• neutron
• valence shell

What is the mass of a proton and a neutron?

• 1amu
• 2grams
• 13amu
• 10cm

Subatomic particle that is nearly massless.

• electron

• neutron

• nucleus

• electron cloud

An electron has a _____ charge.

• negative
• positive
• neutral

Describe an Electron Cloud?

• the mist outside of an atom
• home of the protons
• where electrons are located
• nucleus

What are valence electrons?

• electrons on the first orbital always
• nucleus
• the outermost shell
• the number of electrons on the outermost orbital

Which particles make up the nucleus of an atom?

• protons and neutrons
• electrons and protons
• electrons, protons, and neutrons
• electrons and neutrons

What charge does the nucleus have and why?

• positive - the neutrons do not have a charge
• positive - the neutrons and protons are positively charged particles
• neutral - the neutral charge dominates the positive charge
• neutral - electrons cancel out the positive charge of the atom