Atoms

What type of particles are found in the cloud surrounding the atom's nucleus?

• Neutral particles and positively charge particles

• Positive charge particles only

• Negatively charge particles and positively charge particles

• Negatively charge particles only

Where is most of the mass in an atom located?

• in the nucleus

• in the protons

• in the neutrons

• in the electrons

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

The positively charged particles of an atom are the ________.

• electrons

• protons

• neutrons

• protons & neutrons

Tags

NGSS.MS-PS1-1

The negatively charged particles of an atom are the ______.

• electrons

• protons

• neutrons

• protons & neutrons

Tags

NGSS.MS-PS1-1

If Oxygen (O) has 8 electrons in the atoms electron cloud, then how many protons does it have in the nucleus?

• 3

• 5

• 8

• 12

Tags

NGSS.MS-PS1-1

Looking at the Bohr model for Argon (Ar). How many energy levels does it have and number of valence electrons?

• 4 and 8

• 3 and 20

• 4 and 20

• 3 and 8

Tags

NGSS.MS-PS1-1

Which subatomic particle has the smallest mass?

• Protons

• Neutrons

• Electrons

How many valence electrons are in Carbon (C)?

• 1

• 2

• 3

• 4

Where are valence electrons located?

• Outermost energy level in the electron cloud

• Innermost energy level in the electron cloud

• In the nucleus