Diagnostic Test

Front

What is ionization energy?

Back

Ionization energy is the amount of energy required to remove an electron from an atom.

Front

Which element has a lower ionization energy: Lithium or Potassium?

Back

Potassium has a lower ionization energy than Lithium.

Front

How does an atom gain a charge?

Back

An atom gains a charge by gaining or losing electrons.

Front

What is the atomic mass of Beryllium?

Back

The atomic mass of Beryllium is 9.

Front

What are Lanthanides and Actinides?

Back

Lanthanides and Actinides are elements with atomic numbers 57-70 and 89-102, often placed at the bottom of the periodic table.

Front

What is the periodic table?

Back

The periodic table is a tabular arrangement of chemical elements, organized by increasing atomic number.

Front

What are alkali metals?

Back

Alkali metals are the elements in Group 1 of the periodic table, known for being highly reactive.

Front

What are alkaline-earth metals?

Back

Alkaline-earth metals are the elements in Group 2 of the periodic table, known for having two electrons in their outer shell.

Front

What is the significance of atomic number?

Back

The atomic number of an element is the number of protons in its nucleus and determines its position in the periodic table.

Front

What is a neutron?

Back

A neutron is a subatomic particle found in the nucleus of an atom, with no electric charge.