atomic structure

Subatomic particles with a negative charge

• Electrons

• Neutrons

• Protons

• Quarks

Subatomic particles with a positive charge

• neutrons
• atomic mass
• protons
• isotopes

Measure mainly of the nuclear particles: protons + neutrons

• Subatomic Particles
• Atomic Number
• Atomic Mass
• Gluons

Subatomic particles that are neutral in charge

• Neutrons
• Protons
• Nucleus 
• Electrons

A tiny but very dense, positively charged portion of the atom that holds most of the atomic mass

• Electron Shells
• Orbitals
• Electron Cloud
• Nucleus

What is one way Neutrons are different from electrons?

• they both are negative

• neutrons have no charge, while electrons have a negative charge

• Both are in the nucleus( center of atom)

• Electrons are inside nucleus and neutrons are outside the nucleus.

How many neutrons are in an atom of carbon-14?

• 6

• 8

• 10

• 14

A student creates the model of a carbon-12 atom shown. He wants to add 3 more sub-atomic particles to the model to create a carbon-15 atom. Identify how many protons and neutrons he should add to the model.

• 3 Neutrons

  0 Protons

• 2 Neutrons

  1 Proton

• 1 Neutron

  2 Protons

• 0 Neutrons

  3 Protons

What is the mass of a carbon atom that has 6 protons, 7 neutrons, and 6 electrons?

• 6

• 7

• 13

• 19

Neutral atoms have an equal number of

• electrons and neutrons

• protons and neutrons

• protons and electrons

• protons, neutrons, and electrons