Atomic Theory and Structure

the variety of frequencies of electromagnetic radiation (light) seen through a spectroscope that are emitted by electrons as they transition from higher to lower energy levels; unique for each element

• electron orbitals

• Planck's constant

• electromagnetic spectrum

• atomic emission spectrum

The massive, neutral subatomic particle

• proton

• neutron

• electron

tiny, negatively charged subatomic particle

• proton

• neutron

• electron

The massive, positive subatomic particle

• proton

• neutron

• electron

Which element has an atomic number of 63?

Which element has the atomic number 17?

What is the atomic number of bromine?

• Br

• 35

• 79.904

• 45

Which element has 78 protons?

Which element has 8 protons?

What element has 41 protons and 41 electrons?