Question

1. the 3 particles of the atom are:

a. _______________
b. _______________
c. _______________
their respective charges are:
a. _______________
b. _______________
c. _______________

1. the number of protons in one atom of an element determines the atom’s _____________, and the number of electrons determines _____________ of and element.
2. the atomic number tells you the number of _____________ in one atom of an element. it also tells you the number of ___________ in a neutral atom of that element. the atomic number gives the “identity “ of an element as well as its location on the periodic table. no two different elements will have the _____________ atomic number.
3. the _____________ of an element is the average mass of an element s naturally occurring atom, or isotopes, taking into account the _____________ of each isotope.
4. the _____________ of an element is the total number of protons and neutrons in the _____________ of the atom.
5. the mass number is used to calculate the number of _____________ in one atom of an element. in order to calculate the number of neutrons you must subtract the ___________ from the _____________.

Explanation:

Question 1

Atoms are composed of three main subatomic particles. Protons are in the nucleus and have a positive charge, neutrons are also in the nucleus with no charge, and electrons orbit the nucleus with a negative charge.

The number of protons in an atom's nucleus is the atomic number, which defines the element's identity. The number of electrons (in a neutral atom, equal to protons) determines the element's chemical properties as electrons are involved in bonding.

Atomic number is defined as the number of protons in an atom. In a neutral atom, the number of electrons equals the number of protons (to balance charge). Each element has a unique atomic number, so no two different elements share the same atomic number.

Answer:

a. Proton
b. Neutron
c. Electron

Their respective charges are:
a. Positive (+)
b. Neutral (0)
c. Negative (-)

Question 2