Diagnostic Quiz

The property of an atom that's equal to the number of protons is called ___.

• atomic mass

• atomic number

• atomic weight

• atomic size

The mass number of an atom is equal to the

• atomic weight

• the sum of protons and electrons

• the sum of protons and neutrons

• the sum of electrons and neutrons

Check all that are correct

Which of the following are properties of metals?

• Mostly gases at room temperature.

• Dull

• Left side of the Periodic Table

• Good Conductor of heat and electricity

• Ductile

What is the mass number?

(a)  

What is the atomic number?

(a)  

How many electrons are present?

(a)  

An atom with an atomic number of 15 has 15 protons and (a)   electrons.

Metals are on the left side of the zig zag line and nonmetals, with exception of Hydrogen, are on the right side of the zig zag line.

• True

• False

What is the atomic mass of Arsenic?

• 33

• 107

• 75

Which will have the largest ionization energy: Ag, Rb, I, or Sn?

• Ag

• Rb

• I

• Sn