7.PS1 Review

What is at the center of every atom?

• An electron
• A compound
• A molecule
• A nucleus

Tags

NGSS.MS-PS1-1

The positively charged particles of an atom are the ________.

• electrons
• protons
• neutrons
• protons & neutrons

Tags

NGSS.MS-PS1-1

What does the nucleus of an atom contain?

• Electrons and neutrons
• Protons and neutrons
• Neutrinos and positrons
• DNA and RN

Tags

NGSS.MS-PS1-1

The subatomic particles that make up an atom.

• solid, liquid, gas

• electrons, protons, nucleus

• energy, protons, nucleus

• electrons, protons, neutrons

Tags

NGSS.MS-PS1-1

__________ are negatively charged particles that are in the orbitals around the nucleus.

• protons

• nucleus

• neutrons

• electrons

Tags

NGSS.MS-PS1-1

A proton has a ___________ charge.

• positive

• negative

• neutral

• massive.

Tags

NGSS.MS-PS1-1

Which is an electron?

• A
• B
• C

Tags

NGSS.MS-PS1-1

The particles with no charge in an atom are the _______.

• electrons
• neutrons
• protons
• protons and neutrons

Tags

NGSS.MS-PS1-1

How many atoms of Hydrogen are in H₂O

• 1

• 2

• 3

• more than 3

Tags

NGSS.MS-PS1-1

Which of the following chemical formulas represents a compound? 

• C₃
• O₂
• CH₃CHO
• H₂

Tags

NGSS.MS-PS1-1