7th Grade Period Table / Electrons Quiz

What does the atomic number represent?

• Number of protons or electrons

• Number of neutrons or electrons

• Number of protons or neutrons

• Number of shells or electrons

What does the atomic mass represent?

• Protons + Neutrons

• Electrons + Neutrons

• Protons + Electrons

• Shells + Electrons

Tags

NGSS.MS-PS1-1

How would you find the number of neutrons in an atom?

• Subtract the atomic number from the atomic mass

• Add the atomic number to the atomic mass

• Subtract the number of electrons from the atomic mass

• Add the number of protons to the number of electrons

What is the atomic number of an element with 3 protons?

• 3

• 7

• 10

• 14

How do you calculate the number of neutrons in an atom?

• Atomic Mass - Atomic Number

• Atomic Number + Atomic Mass

• Atomic Mass + Atomic Number

• Atomic Number - Atomic Mass

If an element has an atomic mass of 31 and an atomic number of 15, how many neutrons does it have?

• 16

• 15

• 31

• 46

Tags

NGSS.MS-PS1-1

Which element has an atomic number of 47?

• Ag

• Ni

• K

• Cl

What is the relationship between the number of protons and electrons in a neutral atom?

• They are equal

• Protons are double the electrons

• Electrons are double the protons

• Protons are half the electrons

What is each period in the periodic table called?

• Group

• Row

• Column

• Shell

How many electrons can the 2nd shell hold?

• 2

• 8

• 18

• 32