Question

match each item with the correct statement below
a. proton b. nucleus c. atom d. electron e. neutron

1. the smallest particle of an element that retains the properties of that element
2. a positively charged subatomic particle
3. a negatively charged subatomic particle
4. a subatomic particle with no charge
5. the central part of an atom, containing protons and neutrons

choose the correct answer.

1. the smallest particle of an element that retains the properties of that element is a(n) ___.

a. atom b. electron c. proton d. neutron

1. all atoms are ___.

a. positively charged, with the number of protons exceeding the number of electrons
b. negatively charged, with the number of electrons exceeding the number of protons
c. neutral, with the number of protons equaling the number of electrons
d. neutral, with the number of protons equaling the number of electrons, which is equal to the number of neutrons

1. the particles that are found in the nucleus of an atom are ___.

a. neutrons and electrons b. electrons only c. protons and neutrons d. protons and electrons

1. the atomic number of an element is the total number of which particles in the nucleus

a. protons b. neutrons c. electrons d. protons and electrons

Explanation:

1. By definition, an atom is the smallest particle of an element that retains its properties.
2. Protons are positively - charged subatomic particles.
3. Electrons are negatively - charged subatomic particles.
4. Neutrons are subatomic particles with no charge.
5. The nucleus is the central part of an atom containing protons and neutrons.
6. As stated before, the atom is the smallest particle of an element with its properties.
7. Atoms are neutral with the number of protons equaling the number of electrons.
8. Protons and neutrons are found in the nucleus of an atom.
9. The atomic number of an element is the total number of protons in the nucleus.

Answer:

1. c. Atom
2. a. Proton
3. d. Electron
4. e. Neutron
5. b. Nucleus
6. a. atom
7. c. neutral, with the number of protons equaling the number of electrons
8. c. protons and neutrons
9. a. Protons