Atoms, Elements and Periodic Table

How many neutrons does Chlorine (Cl) with an atomic number of 17 and an atomic mass of 35.

• 17

• 18

• 19

Which two subatomic particles are found in the NUCLEUS of at atom?

• protons & nuetrons

• protons & electrons

• neutrons & electrons

• electrons & protons

Which type of subatomic particles have the LEAST amount of mass?

• protons

• electrons

• neutrons

• nucleus

What gives an atom mass?

• Protons & electrons in the nucleus

• electrons in the cloud

• protons & neutrons in the nucleus

• Protons & electrons in the cloud

The sum of the protons and neutrons in the nucleus of an atom

• Atomic Number

• Compound

• Electrons

• Mass Number (also called Atomic Mass)

What does an atom's period tell us?

• Number of protons

• Number of electrons

• Number of valence electrons

• Number of shells

The part of the atom that determines the identity of the atom is the ____________.

• proton

• nucleus

• electron

• neutron

A neutron has a charge of

• +2

• No charge

• -1

• +1

Which of the following is the correct symbol for sodium?

• S

• Na

• So

• N

The atomic number of Beryllium is 4. Its mass number is 9.0122. How many neutrons does an atom of Beryllium have in its nucleus?

• 4

• 4.0122

• 5.0122

• 6

Tags

NGSS.MS-PS1-1