End of Year Chemistry

What does the arrow pointing to 8 represent

• atomic number

• chemical symbol

• element name

• atomic mass

Tags

NGSS.MS-PS1-1

What does the arrow pointing to 15.999 represent

• atomic number

• chemical symbol

• element name

• atomic mass

Tags

NGSS.MS-PS1-1

Who was the first person to come up with the Atomic Theory describing atoms as indestructible spheres that bond to form compounds.

• John Dalton

• Democritus

• Ernest Rutherford

• Niels Bohr

How do you get the crystals to form from the solution?

• Stir it

• Boil some water off and leave the rest evaporate naturally.

• Filter it

• Dissolve it

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

How many different subatomic particles are found within the atom

• 1

• 2

• 3

• 4

The subatomic particle with a negative charge

• proton

• neutron

• electron

• nucleus

Tags

NGSS.MS-PS2-3

a pure form of matter that cannot be broken down into simpler substances

• element

• atom

• subatomic particle

• nucleus

the smallest part of a chemical element that can exist

• element

• atom

• nucleus

• subatomic particle

the extremely dense center of an atom

• proton

• neutron

• electron

• nucleus

Atoms of the same element that have a different number of neutrons

• isotopes

• atomic mass

• atomic number

• mass number