science atoms

__________ has a small dense core called the nucleus?

• Magnetic field

• Earth

• Atoms

• Molecules

The nucleus is made up of what 2 particles?

• Protrons

• Atoms

• molecules

• Neutrons

• electricity

Protons have a positive charge but Neutrons has _______.

• No charge

• Some charge

• Negative charge

Electrons orbit the nucleus and they have a _______ charge

• Negative

• Positive

• Neutral

• Some

When we’re dealing with the tiny particles in the atom we use ____________________ (_____)

• Atomic Mass Units (AMU)

• Atomic Nucleus Units (ANU)

• Atomic Charge Units (ACU)

• Atomic Bomb Units (ABU)

A proton and neutron each have a mass of ________.

• 8 AMU

• 1 AMU

• 6 AMU

• 2 AMU

The mass of ____ is the mass of Protons and Neutrons added together

• Molecule

• Atoms

• Earth

• nucleus

The atomic number of an atom is the number of _______ in the atom

• Protons

• Neutrons

• Atoms

• Particles

Changing the number of protons and neutrons in an atom gives them very different _________

• Masses

• Properties

• Molecules

• Surroundings

What is it called when a substance is only made up of one atom?

• Combinding

• Element

• Compounds