Periodic Table Quiz

Different types of atoms are called:

• Molecules

• Compounds

• Elements

• Mixtures

How many known elements are there?

• 100

• 108

• 118

• 128

Elements are unique and are made of:

• Multiple types of atoms

• One type of atom

• Two types of atoms

• Three types of atoms

What can have different numbers of protons and electrons, explaining differences in physical properties of matter?

• Molecules

• Compounds

• Elements

• Mixtures

At room temperature, some elements exist as:

• Only gases

• Only liquids

• Only solids

• Gases, liquids, and solids

Who invented the periodic table in 1869?

• Albert Einstein

• Dmitri Ivanovich Mendeleev

• Marie Curie

• Isaac Newton

All elements are listed and organized in a chart called the:

• Elemental Chart

• Atomic Table

• Periodic Table

• Chemical Chart

What determines the position of an element in the periodic table according to modern periodic law?

• The number of neutrons

• The number of electrons

• The number of protons

• The atomic mass

How many major categories of elements are there in the periodic table?

• Two

• Three

• Four

• Five

Where are metals positioned in the periodic table?

• To the right

• In the middle

• To the left

• At the bottom