Atoms and Molecules

What are the tiny particles that make up matter?

• protons, nucleus, neutrons

• neutrons, positive, negative

• protons, neutrons, electrons

• electrons, protons, eggos

Tags

NGSS.MS-PS1-1

What part of the atom has a positive charge?

• protons

• neutrons

• electrons

• nucleus

What part of the atom has a negative charge?

• protons

• neutrons

• electrons

• nucleus

Which part of the atom has a neutral charge? (no charge)

• proton

• neutron

• electron

• nucleus

Helium has an atomic number of two because it has two _________.

• protons

• neutrons

• electron

• nucleus

Tags

NGSS.MS-PS1-1

In the Bohr Diagram of an atom, the electrons are found where?

• outside the nucleus

• inside the nucleus

• on a motorbike

• at the Shell gas station

The formula for water is $H_2O$ . Each molecule of water includes ___________________.

• one hydrogen atom and two oxygen atoms

• two hydrogen atoms and one oxygen atom

• two hydrogen atoms and two oxygen atoms

• one chlorine atom and two oxygen atoms

Tags

NGSS.MS-PS1-1

Sodium is an _______________

• element

• compound

• salt

• molecule

If neon has an atomic number of 10 and an atomic mass of 20, how many neutrons does it have?

• not enough information

• 20

• 10

• 5

If potassium has 19 protons, it also has 19 ______

• protons

• electrons

• neutrons

• nucleus

Tags

NGSS.MS-PS1-1