Chemistry

What atomic number is Carbon?

• 6

• 12

• 4

• 5

How many periods are there in the periodic table?

• 118

• 5

• 7

• 80

What is the vertical line on the periodic table called?

• groups or famliy

• periods

• similar

• vertical line

What are the horizontal rows of the periodic table called?

• Layers

• Lines

• Periods

What is the first element?

• Hydrogen

• Helium

• Oxygen

• Beryllium

How many elements are on the periodic table?

• 120

• 118

• 7

• 119

Why are the vertical columns on the periodic table called groups or families?

• their weight is the same

• they were found at the same time

• their similar chemical behavior

• alaphbetical order

Which one comes first on the periodic table: oxygen or helium?

• Helium

• Oxygen

• They weigh the same so they are placed together

What is the element for H

• Helium

• Hydrogen

• Holmium

• Mercury

Who is known for making the Periodic Table

• Marie Curie

• Henri Becquerel

• Dmitri Mendeleev

• Joseph Priestley

• Antoine Lavoisier