Unit 1 IPC Atomic Structure and the Periodic table

Front

What is the atomic number of an element?

Back

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

Front

What is the atomic number of iron?

Back

26

Front

How many protons does titanium have?

Back

Titanium has 22 protons.

Front

What is an ion?

Back

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.

Front

How many electrons does a magnesium ion with a +2 charge have?

Back

10 electrons.

Front

What is the charge of an ion with 3 protons and 5 electrons?

Back

The total charge is -2.

Front

How many electrons does oxygen have?

Back

Oxygen has 8 electrons.

Front

What is the relationship between protons and electrons in a neutral atom?

Back

In a neutral atom, the number of protons equals the number of electrons.

Front

What is the significance of the periodic table?

Back

The periodic table organizes elements based on their atomic number, electron configuration, and recurring chemical properties.

Front

What is an isotope?

Back

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