Explore the Periodic Table

Front

Who was the first to arrange the elements into a periodic table with increasing order of atomic masses?

Back

John Newlands

Front

What law did John Newlands propose regarding the properties of elements?

Back

The law of octaves, which states that every eight elements have similar properties.

Front

Who arranged the elements in the periodic table according to atomic numbers?

Back

Henry Moseley

Front

What are the elements found on the left side of the Periodic Table called?

Back

Metals

Front

Which group of elements are considered Noble Gases?

Back

He, Neon, Argon, Krypton, Xenon

Front

Which of the following are metals?

Back

Sodium, Gold, Silver

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the significance of the periodic law?

Back

It states that the properties of elements are a periodic function of their atomic numbers.

Front

What are semi-metals?

Back

Elements that have properties of both metals and non-metals.

Front

What is the main characteristic of non-metals?

Back

They are poor conductors of heat and electricity.