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 element's identity).

• electron
• proton
• neutron
• valence shell

What is the mass of a proton and a neutron?

• 1 amu
• 2 grams
• 13 amu
• 10 cm

This causes the mass of the nucleus to increase.

• adding an electron
• adding a neutron
• more orbitals
• adding negatively charged particles

An electron has a _____ charge.

• negative
• positive
• neutral

Tags

NGSS.HS-PS2-4

Describe an Electron Cloud.

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

What are the maximum number of electrons that go on the first 3 energy levels?

• 2, 4, 16
• 2, 8, 18
• 4, 8, 12
• 3, 4, 6

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