Question

part a: atoms

1. the smallest unit of an element that still has the properties of that element is called a(n):

a) proton
b) molecule
c) atom
d) neutron

1. label the three main subatomic particles and their charges:

• proton: ________
• neutron: ________
• electron: ________

1. if an atom has 6 protons, what element is it?
2. true or false:

• electrons are found inside the nucleus. ________
• neutrons have no charge. ________

Explanation:

Question 1

To determine the smallest unit of an element that retains its properties, we recall the definitions: a proton is a subatomic particle, a molecule is a group of atoms, an atom is the basic unit of an element, and a neutron is a subatomic particle. So the atom is the smallest unit of an element with its properties.

• Proton: Positively charged subatomic particle located in the nucleus.
• Neutron: Neutrally charged (no charge) subatomic particle located in the nucleus.
• Electron: Negatively charged subatomic particle located in electron clouds outside the nucleus.

The number of protons in an atom is its atomic number. An atomic number of 6 corresponds to the element carbon (C), as the atomic number of carbon is 6.

Answer:

c) atom

Question 2