Mendeleev
Metals
Non-Metals
Metalloids
Uses of Elements
100

In this year, Dmitri Mendeleev published his periodic table. 

What is 1896?

100

This is the most common type of metal found on the periodic table of elements. 

What are transition metals?

100

This element is the first element on the periodic table with an atomic number of 1. 

What is hydrogen?

100

All metalloids are classified as this state of matter.

What is solid?

100

This transition metal is used for electrical wires.

What is cooper?

200

The original periodic table created by Meendeleev initially had only this number of elements.

What is 63 elements?

200

The elements beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra) found in this metal group share similar properties such as shiny, silvery-white, somewhat reactive metals at standard temperature and pressure. 

What are the alkaline earth metals?

200

This is the only nonmetal classified as a liquid.

What is bromine? 

200

Typically metalloids have a this type of appearance, but are also brittle.

What is metallic? 

200

This nonmetal is used to make diamonds.

What is carbon?

300

Mendeleev published in 1869, using this to organize the elements.

What is atomic weight?

300

The alkali metals are a group in the periodic table consisting of the chemical elements lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), francium (Fr), and this element whose chemical symbol is Li.

What is lithium?

300

Water is made up of these two nonmetals.

What are hydrogen and oxygen?

300

This metalloid is known to be one of the most poisonous of the elements.

What is arsenic? 

300

This nonmetal element is used as a disinfectant in swimming pools. 

What is chlorine? 

400

In 1955, Scientists at UC Berkeley created 17 atoms of a previously undiscovered element. This element filled an empty spot of 101.

What is Mendelevium?

400

These metals are a set of metallic elements in the periodic table which are located between the transition metals to their left, and the metalloids to their right.

What are post-transition?

400

Helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and the radioactive radon (Rn) make up this nonmetal group.

What is noble gases?

400

Metalloids have some properties in common with both metals and some in this.

What are nonmetals?

400

Bananas are full of this alkali metal.

What is potassium? 

500

Because Mendeleev predicted atomic masses and other chemical properties for elements that have yet to be discovered this were found on his chart. 

What are blank spaces?

500

By mass, this element makes up about 8% of the Earth's crust and it is the third most abundant element after oxygen and silicon.

What is aluminum?

500

Although five times more elements are metals than nonmetals, these two nonmetals make up over 99% of the observable Universe.

What are hydrogen and helium?

500

This is the most abundant of the metalloids on Earth and is also the second most abundant element in the Earth's crust after oxygen.

What is silicon?

500

This nonmetal is used to help materials glow.

What is phosphorus?