Average Atomic Mass & Atomic Structure 25-26

Which particle determines the identity of the element?

• electron

• proton

• neutron

• nucleus

Which particle has a positive charge?

• electron

• molecule

• proton

• neutron

Choose the particle that has no charge.

• nucleus
• neutron
• proton
• electron

This causes the mass of the atom to increase.

• adding an electron

• adding a neutron

• removing a proton

• adding negatively charged particles

Tags

NGSS.HS-PS1-8

Which particles make up the nucleus of an atom?

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

Tags

NGSS.MS-PS1-1

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

Tags

NGSS.MS-PS1-1

What is the mass number and name of an element with 8 protons and 8 neutrons?

• Carbon - 16

• Oxygen - 16

• Oxygen - 24

• Neon - 8

Tags

NGSS.MS-PS1-1

An element with a mass number of 10 and an atomic number of 6 has how many protons?

• 5
• 8
• 6
• 10

Tags

NGSS.MS-PS1-1

An element with a mass number of 11 and an atomic number of 5 has how many neutrons?

• 11
• 5
• 6
• 16

Tags

NGSS.MS-PS1-1

An atom has 10 protons, 15 neutrons and 10 electrons. What is its mass number?

• 20

• 10

• 5

• 25