Question

anatomy of an atom the basic model
what are atoms made of?
scientists have discovered that even atoms are composed of smaller parts called subatomic particles. an atom with an equal number of protons and electrons are stable and have no charge.
nucleus
the nucleus is a dense core at the center of an atom made of protons and neutrons. it contains 99.9% of the atoms mass.
this illustration is not to scale.
if an atoms nucleus were the size shown here, the closest electrons would be over 100 meters away
protons
protons are positively - charged particles found in the nucleus. atoms are identified by the number of protons they have.
neutrons
neutrons are particles found in the nucleus that have no charge. atoms of the same element with different numbers of neutrons are called isotopes.
electrons
electrons are negatively - charged particles that orbit the nucleus in a \cloud\ at nearly the speed of light
anatomy of an atom the basic model

1. what is located at the center of an atom?
2. what are the parts of an atom called?
3. what subatomic particles are located in the nucleus?
4. what subatomic particles dont have a charge?
5. which subatomic particles are the lightest?
6. what are electrons?
7. what is the periodic table of elements?
8. what is an isotope?
9. what is the atomic number equal to?
10. what is the atomic mass number equal to?

Explanation:

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

Answer:

1. The nucleus
2. Subatomic particles
3. Protons and neutrons
4. Neutrons
5. Electrons
6. Negatively - charged particles that orbit the nucleus in a "cloud" at nearly the speed of light
7. A tabular display of the chemical elements organized by atomic number, electron configuration, and recurring chemical properties
8. An atom of the same element with different numbers of neutrons
9. The number of protons
10. The sum of protons and neutrons