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Chemistry

What are the 7 valence electrons?

Valence electrons play an important role in the chemical behavior of an atom. They are the number of electrons present in the outermost shell of an atom, and are essential...

What is the 8 valence electron rule?

The 8 valence electron rule, also known as the octet rule, is a fundamental concept in chemistry that explains the behavior of atoms and their tendency to form stable compounds....

Why is it a mass number?

Mass number is an important concept in chemistry, as it helps to identify the number of protons and neutrons in an atom or molecule. The mass number is written as...

What are the 3 main isotopes?

Have you ever heard of isotopes? Ever wondered what they are and how they differ from other elements? Isotopes are atoms of the same element that have a different number...

What are the 3 isotopes called?

Isotopes are atoms of the same element that have different masses due to having different numbers of neutrons. There are over 3000 known isotopes in existence, with some being stable...

Is element 137 possible?

The Periodic Table of Elements is an essential tool for scientists and chemists alike, allowing us to study and understand the nature of matter. But did you know that the...