Periodic Table - Test Review

If an element is dull or shiny, it is a...

What is the "magic number" of valence electrons?

Which element is the most chemically reactive?

What do elements in the same family have in common?

Which atom has 3 energy levels with 7 valence electrons?

How did Mendeleev arrange the first periodic table?

Who was the first person to create a periodic table?

What number on the periodic table states the number of valence electrons an element has?

What is the element with five electron shells and two valence electrons?

Elements in the same row on the periodic table belong to the same...

What are halogens also known as?

Carbon and silicon have the same number of...

Find its family: New element is metallic, soft like butter, and reacts violently with water

All actinides are radioactive.

Which family is one short of having a full valence shell?

If an element is a poor conductor, it is a...

Which type of elements are brittle and non-malleable?

Which of the following groups do not follow the valence rule?

Which two elements would have the most similar chemical properties?

What do halogens, alkali metals, and alkaline earth metals have in common?

Who improved Mendeleev's design of the periodic table?