Basics of the Periodic Table

Front

What makes an element unique and different from every other element on the periodic table?

Back

The number of protons.

Front

Which chemical family does an element that reacts with oxygen, has a silver metallic luster, and has a low melting point most likely belong to?

Back

Alkaline earth metals.

Front

Which group on the periodic table contains diatomic compounds?

Back

Group 17 (7A) - Halogens.

Front

Which element is in the same group as iodine (I) and the same period as sodium (Na)?

Back

Chlorine (Cl).

Front

What are the properties of an unknown element that exists naturally as a diatomic gas, easily accepts electrons, and reacts violently with alkali metals?

Back

It most likely belongs to the Halogens.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What are the main groups of the periodic table?

Back

Alkali metals, Alkaline earth metals, Transition metals, Halogens, Noble gases.

Front

What is a diatomic molecule?

Back

A molecule that consists of two atoms, which can be of the same or different elements.

Front

What is the significance of the periodic table's arrangement by increasing atomic number?

Back

It reflects the periodicity of element properties and their electron configurations.

Front

What are the characteristics of metals on the periodic table?

Back

They are typically shiny, good conductors of heat and electricity, malleable, and ductile.