Atomic Structure

What is the charge and location of a proton?

• Negative charge, nucleus.

• Positive charge, electron cloud.

• Neutral charge, electron cloud.

• Positive charge, nucleus

What is the charge and location of a neutron?

• Positive charge, located in the nucleus.

• Negative charge, located in the nucleus.

• No charge, located in the electron cloud.

• No charge, located in the nucleus

What is the charge and location of an electron?

• Negative charge, located outside the nucleus

• Neutral charge, located outside the nucleus.

• Positive charge, located inside the nucleus.

• Positive charge, located outside the nucleus.

What can you assume has happened if an electron moves to a higher energy level?

• The electron has lost energy.
• The electron has remained at the same energy level.
• The electron has changed its spin direction.
• The electron has absorbed energy.

Tags

NGSS.HS-PS1-1

Which is true about Oxygen-17 and Oxygen 18?

• Oxygen-17 and Oxygen-18 are radioactive isotopes of oxygen.
• Oxygen-17 and Oxygen-18 have the same number of protons but different numbers of electrons.
• Oxygen-17 and Oxygen-18 are isotopes of oxygen with different numbers of neutrons.
• Oxygen-17 and Oxygen-18 are isotopes of carbon with different numbers of neutrons.

To find the number of neutrons, you would take the

• Atomic mass + Atomic number
• Atomic mass x Atomic number
• Atomic mass - Atomic number
• Atomic mass / Atomic number

A glowing neon light is caused by electrons emitting energy as they

• move from lower energy levels to higher energy levels.
• move from higher energy levels to lower energy levels
• collide with other electrons.
• absorb energy from the surroundings.

Tags

NGSS.HS-PS4-3

What is the name for an atom that has lost or gained electrons?

• proton
• neutron
• electron
• ion

Each element releases energy as light in a certain way, like a

• flashlight
• candle
• lamp
• fingerprint

Tags

NGSS.HS-PS1-4

NGSS.HS-PS4-3

How many electrons can the 5th energy level hold?

• 10
• 25
• 100
• 50