U02 Atomic Structure Review

Front

What is the atomic number of titanium?

Back

22

Front

What does the 'A' in the isotope symbol represent?

Back

Mass number.

Front

How many neutrons are in the isotope Li-6?

Back

3 neutrons.

Front

What happens to an atom when it loses electrons?

Back

It becomes positively charged.

Front

How many neutrons does the isotope Li-7 have?

Back

4 neutrons.

Front

What is the mass number of an atom?

Back

The total number of protons and neutrons in the nucleus.

Front

What is the charge of an atom with more electrons than protons?

Back

Negative.

Front

What is the definition of an isotope?

Back

Atoms of the same element with different numbers of neutrons.

Front

How do you calculate the number of neutrons in an isotope?

Back

Mass number - Atomic number.

Front

What is the significance of the atomic number?

Back

It determines the identity of the element.