Basic Atomic Structure

Match the Following

• The dense center of an atom containing protons and neutrons.

• Element

• A substance that cannot be broken down into simpler substances by chemical means.

• Proton

• Positively charged particles found in the nucleus of an atom.

• Neutron

• Particles with a neutral charge found in the nucleus of an atom.

• Nucleus

• The smallest unit of an element that keeps the element’s chemical properties.

• Atom

Tags

NGSS.MS-PS1-1

Using a periodic table (you can use the one in the textbook) order the following elements by mass number, least to greatest.

• Radon

• Boron

• Gallium

• Thallium

• Hydrogen

Which of the following is the best definition for matter?

• anything that has mass and volume

• the amount of space a substance occupies

• how much something weighs on earth

True or False:

Atoms are the basic building blocks of most of the matter around you.

• true

• false

Tags

NGSS.MS-PS1-1

Which of the following parts of an atom are positively charged?

• neutron

• proton

• electron

• nucleus

Which of the following parts of an atom can absorb or release energy in the form of heat, light, etc?

• Proton

• Neutron

• Electron

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Subatomic particles with a negative charge

• Electrons

• Neutrons

• Protons

• Quarks

Tags

NGSS.MS-PS2-3

Subatomic particles with a positive charge

• neutrons
• atomic mass
• protons
• isotopes

Value representing the number of protons in an element

• Atomic Mass
• Mass Number
• Valence Electrons
• Atomic Number

Subatomic particles that are neutral in charge

• Neutrons
• Protons
• Nucleus 
• Electrons