Pre-review

Leucippus is _____ of Democritus?

• Father

• Uncle

• Teacher

• Respondents

What is the subatomic particles?

Which of the following is truth about atomism?

• The atom is a part of a cell

• Matter is composed of atomos and void

• Everything is made up of small particles

Which of the following is NOT true about Thomson's Plum pudding model?

• The atom is divisible into charged particles.

• The atom is made of massive mass with a positive charge.

• Electrons negatively charged and move around the nucleus.

• Electrons are negatively charged particles that are embedded on the body of the atom.

What is atom?

____is composed of smaller materials?

• Atom

• Helium

• Elements

• Matter

The 3 Particles of the atom are protons, electrons, neutrons. Why is their respective charges?

• Positivity and negativity

• Negative (only)

• Negativity charged, positivity charged, neutrally charged

• Positive AB+

Describe what is matter?

What is the difference between heterogeneous and homogeneous?

Ngalan ni ma'am ?