# Science

What is the atomic number of an atom?(1 point)

A. the number of particles outside the nucleus

B. the number of particles in the nucleus

C. the number of neutrons

D. the number of protons

Which statement about an atom is correct?(1 point)

A. The neutron has no charge and is found outside of the nucleus.

B. The electron has a negative charge and is found outside of the nucleus.

C. The proton has no charge and is found in the nucleus.

D. The neutron has a negative charge and is found in the nucleus.

A student wants to draw a model of an atom. Which statement describes how to find the number of neutrons to include in the model?(1 point)

A. Subtract the atomic number from the mass number.

B. Add the number of electrons to the number of protons.

C. Subtract the number of electrons from the number of protons.

D. Add the atomic number and the mass number.

What is the atomic number of an atom?(1 point)

A. the number of particles outside the nucleus

B. the number of particles in the nucleus

C. the number of neutrons

D. the number of protons

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