Periodic Table - full unit

Front

What does the atomic number represent?

Back

The atomic number represents the number of protons in the nucleus of an atom, which determines the element's identity.

Front

What does the symbol -1 0 e represent?

Back

The symbol -1 0 e represents a beta particle, which is a type of radiation emitted during radioactive decay.

Front

What type of element is Xenon?

Back

Xenon is a noble gas, which is a group of elements characterized by their lack of reactivity.

Front

What is the atomic number of Nickel?

Back

The atomic number of Nickel is 28.

Front

What is a row on the Periodic Table called?

Back

A row on the Periodic Table is called a period.

Front

What is the significance of the atomic mass?

Back

The atomic mass is the weighted average mass of an element's isotopes, measured in atomic mass units (amu).

Front

What are alkali metals?

Back

Alkali metals are the elements in Group 1 of the Periodic Table, known for being highly reactive and having one electron in their outer shell.

Front

What are halogens?

Back

Halogens are the elements in Group 17 of the Periodic Table, known for being very reactive nonmetals.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

What is an isotope?

Back

An isotope is a variant of an element that has the same number of protons but a different number of neutrons.