science test

How does thermal energy play a role in particle motion and changes of state?

• Increasing an object's thermal energy increases particle motion and can cause a change of state.

• Decreasing an object's thermal energy increases particle motion and can cause a change of state.

In this type of bond electrons are shared by two non-metals

• Ionic

• Covalent

• Subatomic

Which subatomic particle tells you the identity of the Element? (a)

• Protons

• Neutrons

• Electrons

• Nucleus

What is the mass of the Chlorine gas?

2NaCI + F2 - 2NaF + C12

5.4 + 3.2g = 4.9g +

____9

• 3.7

• 2

• 6

lons form because atoms either gain or lose

• Electrons

• Protons

• Neutrons

Which subatomic particle has a NEGATIVE charge?

• Electrons

• Protons

• Neutrons