Question

what is the atomic mass number equal to? what is the atomic number equal to? what is an isotope? what is the periodic table of elements? what are electrons? which subatomic particles are the lightest? what subatomic particles dont have a charge? what subatomic particles are located in the nucleus? what are the parts of an atom called? what is located at the center of an atom? anatomy of an atom the basic model molecules unit 1 - lesson 2 worksheet

Explanation:

1. The atomic mass number is equal to the sum of protons and neutrons in an atom.
2. The atomic number is equal to the number of protons in an atom.
3. An isotope is an atom of an element with the same number of protons but different number of neutrons.
4. The Periodic Table of Elements is a tabular display of the chemical elements, organized by atomic number, electron configuration, and recurring chemical properties.
5. Electrons are negatively - charged subatomic particles that orbit the nucleus of an atom.
6. The lightest subatomic particles are electrons.
7. Neutrons are subatomic particles that don't have a charge.
8. Protons and neutrons are located in the nucleus.
9. The parts of an atom are protons, neutrons, and electrons. Protons and neutrons are in the nucleus and electrons orbit the nucleus.
10. The nucleus is located at the center of an atom.

Answer:

1. The sum of protons and neutrons.
2. The number of protons.
3. An atom of an element with the same number of protons but different number of neutrons.
4. A tabular display of chemical elements organized by atomic number, electron configuration, and recurring chemical properties.
5. Negatively - charged subatomic particles that orbit the nucleus.
6. Electrons.
7. Neutrons.
8. Protons and neutrons.
9. Protons, neutrons, and electrons (protons and neutrons in the nucleus, electrons orbiting the nucleus).
10. The nucleus.