Name that element
History
Groups
Isotopes
Ions
100

Atomic number 1

What is Hydrogen?
100

This Russian scientist developed the first modern periodic table.

Who is Dimitri Mendeleev?

100

Non-reactive gases found in the last column of the periodic table

What are noble gases?

100

Different versions of the same element

What is an Isotope?

100

A charged atom

What is an ion?

200

Element that is the basis of life

What is carbon?

200

The first attempt at grouping elements by properties

What are triads?

200

The first column of the periodic table

What are alkali metals?

200

The number of this particle is what is different across isotopes

What are neutrons?

200

Electrons posses this type of charge

What is negative charge?

300

A radioactive element with chemical symbol of U

What is uranium?

300

This scientist was the first to determine atomic number

Who is Henry Moseley?

300

The group in the second column of the periodic table

What are alkali earth metals?

300

Name of unstable isotopes

What are radioisotopes?

300

This ion is formed when an atom loses an electron

What is a positive ion/ cation?

400

These elements bond together to form table salt

What are sodium and chlorine?

400

These two scientists who worked on the periodic table share a first name.

Who are the Johns?

400

This group needs only one more electron to be stable

What are halogens?

400

Working from this number can determine how many neutrons are in an isotope

What is atomic mass?

400

The alkali metals form this type of ion.

What is a + Ion

500

A metal that is liquid at room temperature

What is mercury?

500

Part of Mendeleev's success with his periodic table is he left gaps for these.

What are undiscovered elements?

500

The large group of elements in the middle of the periodic table

What are transition metals?

500

This is the reason many listed atomic masses are in decimals.

What is the average of isotope masses?

500

When Oxygen reacts it will form this charge level of ion

What is a -2 ion?

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