Basic Chemistry

Question 1

What are atoms?

Answer 1

• smallest particles.
• cannot be broken down without losing their characteristics.
• Electrically neutral
• Made of sub atomic particles: (protons, neutrons, electrons)

Question 2

Atomic number

Answer 2

Number of protons

Question 3

Atomic mass number

Answer 3

Mass of protons + neutrons

Question 4

Isotopes

Answer 4

• heavy (more neutrons)
• no charge
• unstable

Question 5

What are ions?

Answer 5

Atoms that have lost or gained electrons.

now have an electrical charge

Question 6

What are the different types of matter?

Answer 6

Solid, liquid, gas, plasma