Atom Structure

Multiple Choice

Which of the following best describes an element?

• A substance made of different types of atoms

• A substance made of all the same atoms

• A substance that can be broken down into simpler substances

• A mixture of atoms and molecules

Multiple Select

The proton is...

• negative

• light

• positive

• heavy

• on the shells

Multiple Select

The neutron is...

• negative

• light

• positive

• heavy

• on the shells

Multiple Select

The electron is...

• negative

• light

• positive

• heavy

• on the shells

Labelling

Label the parts of an atom.

Drag labels to their correct position on the image

proton

electron

neutron

valence electron

Labelling

Label the parts of an atom.

Drag labels to their correct position on the image

outer shell

center

valence shell

inner shell

nucleus

Multiple Select

Which of the following statements about atomic number are correct?

• It tells the number of protons in an atom.

• It is unique to each element.

• It tells the mass of the element.

• It is the larger number in the periodic table square.

Multiple Choice

What is the mass of an atom with 7 protons, 8 neutrons, and 7 electrons?

• 7 amu

• 8 amu

• 14 amu

• 15 amu

• 1 amu

Multiple Choice

What is the element of an atom with 7 protons, 8 neutrons, and 7 electrons?

• O

• Si

• P

• N

Multiple Choice

How many electrons does Boron have?

• 5

• 6

• 10

• 4

• 11

Multiple Choice

How many neutrons does Boron have?

• 5

• 6

• 10

• 4

• 11

Multiple Choice

How many protons does Boron have?

• 5

• 6

• 10

• 4

• 11