KHTN7_ÔN TẬP CHƯƠNG 1

Categorize

Options (9)

positive

in the nucleus

1 atomic mass unit

neutral

in the nucleus (2)

1 amu

negative

outside the nucleus

Zero mass

For each subatomic particle, choose the correct mass, charge, and location.

Proton

Neutron

Electron

Fill in the Blank

The ________ contribute to the overall mass of an atom. They are found in the nucleus. They have a charge of 0.

Fill in the Blank

_____ are found in the nucleus, they have positive charge, and a mass of 1.

Fill in the Blank

Which subatomic particle determines the type of element?

Multiple Choice

What are the 3 particles that make-up the atom?

• protons, neutrons, and isotopes
• neutrons, isotopes, and electrons
• positives, negatives, and electrons
• protons, neutrons, and electrons

Fill in the Blank

Type in the element symbol for an atom that has 11 protons.

Categorize

Options (6)

salad

rocks and sand

trail mix

vanilla ice cream

jello

soap

Sort the following mixtures.

Heterogeneous

Homogeneous

Categorize

Options (12)

Boron (B)

Carbon (C)

Nitrogen (N)

Fluorine (F)

Neon (Ne)

Magnesium (Mg)

Carbon Dioxide (CO2)

Ammonia (NH3)

Methane (CH4)

Hydrochloric Acid (HCl)

Calcium Carbonate (CaCO3)

Sulfuric Acid (H2SO4)

Identify the items as either elements or compounds.

Elements

Compounds

Multiple Choice

Is this image showing a homogeneous or a heterogeneous mixture? Image: Cesar salad

• homogeneous

• heterogeneous

Poll

How confident do you feel about this topic now?

• Very confident
• Somewhat confident
• Not confident