Chemistry Quiz: The Periodic Table of Elements

As you move left to right on a row or period what happens?

• Atomic number increases by 1

• Electrons decrease

• Number of shells decrease

• Nothing

The first energy shell can hold ______ electrons.

• 2

• 8

• 18

What does the atomic number tell you?

• Number of Protons
• Number of Neutrons
• Sum of protons and neutrons

Use your periodic table to find which element has 5 protons.

• Lithium

• Calcium

• Boron

• Neon

Which of the following is an Noble gas?

• Hydrogen

• Helium

• Oxygen

• Carbon dioxide

The vertical columns in the periodic table are known as

• Groups

• Elements

• No name

• Periods

As you move across the periodic table atoms tend to get smaller because, ______________.

• the atoms have more mass.
• the atoms have less mass
• the atoms have more protons.
• the atoms have less electrons.

Which periodic group has the smallest atomic radius?

• Alkali metals
• Halogens
• Noble Gases
• Transition metals

Ionization energy is...

• the energy required to add an electron to a specific atom
• how much energy it takes to remove an electron from an atom
• the energy required to shield the outer electrons from the nucleus
• a measure of the ability of an atom to attract electrons

Which of the following atoms is smaller than Zinc?

• Gallium
• Aluminum
• Magnesium
• Strontium