What is atomic number? How is it used to distinguish one element from another?

Answer 1

The atomic number tells you how many protons an atom has. This is important since each element contains a different number of protons and electrons.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer 2

Cooper Adams

Since no two elements have the same number of protons in their nuclei, the atomic number is a useful tool for differentiating between them. As an atom's atomic number can be used to identify the element it represents, it can also be used to identify other elements.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.