Answer:
a) protons
b) neutrons
c) electrons
d) +1
e) nucleus
f) -1
g) Atomic number
h) mass number
Explanation:
The chart represents the description of atoms.
- Atoms are smallest part of a chemical element capable of undergoing a chemical reaction typical of the element.
e.g an atom of oxygen retains all the chemical properties of oxygen.
- Atoms consists of three subatomic particles named protons, with a positive charge; neutrons, with no charge (electrically neutral); and electrons, with a negative charge.
- Atomic number is unique to each element
Sodium is 23, Magnesium is 24 etc
- Mass number of an element is the sum of its protons and neutrons. And for isotopes, mass number varies while atomic number remains the same.
