Matter: Atom and Molecules

What is the definition of MATTER?

State the Particle Theory of Matter.

Particles can be made from these 3

(a)  

What is the definition of atom?

• The smallest element and inseparable

• Particle of an element that are made up of two or more atoms

• Particles that are charged due to loss or gain of electrons

Give the definition of molecule

• The smallest element and inseparable

• Particle of an element that are made up of two or more atoms

• Particles that are charged due to loss or gain of electrons

Define ion

• The smallest element and inseparable

• Particle of an element that are made up two or more atoms

• Particles that are charged due to loss or gain of electrons

Which one is the example of atom?

• CO2

• Mg

• Na+

• OH-

Which of the following is the example of molecule?

• Na

• C

• H2O

• Cl-

Name the THREE major parts of an atom

What is the definition of protons?

• Uncharged particles found in the atomic nucleus

• Negatively charged particles that surround the atom's nucleus

• Positively charged particles found in the atomic nucleus