Diagnostic Test

Front

What type of charge does an electron have?

Back

Negative charge

Front

Which element is classified as a halogen?

Back

Chlorine

Front

What are the characteristics of Alkali Metals?

Back

Extremely reactive, shiny, silver in color, soft, and have one valence electron.

Front

What defines Noble Gases?

Back

Unreactive nonmetals, colorless, odorless gases at room temperature, with a full outer energy level (usually 8 valence electrons, except Helium with 2).

Front

What is the atomic mass of Beryllium according to the periodic table?

Back

9

Front

What is the charge of a proton?

Back

Positive charge

Front

What is the charge of a neutron?

Back

Neutral charge

Front

What are the main groups of the periodic table?

Back

Alkali Metals, Alkaline Earth Metals, Transition Metals, Halogens, Noble Gases.

Front

What is the significance of valence electrons?

Back

Valence electrons determine an element's chemical properties and reactivity.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom, which defines the element.