Periodic Table

Most reactive element on the periodic table

The atomic number of an atom is determined by the number of

Malleability means

Which of the following is a metalloid?

An element that is found in all organisms

Which of the following are metals?

Unlike metals, many non metals are

Ductility means

Scientist who first organized the periodic table into families

Which of the following belong in the same group/family?

Inside the sun, nuclear fusion creates helium nuclei from

Scientist that came up with the 'atomic theory'

An element that exists in nature combined to itself is called

Unstable atomic nuclei that release fast moving particles and energy are

In the modern periodic table, elements are arranged

Which of the following are noble gases?

Of the following, the group that contains elements that are the most reactive is the

Most reactive metal family is

Which of the following belong in the same period?

An element that has a diatomic AND a triatomic form