Atoms and the Periodic Table

Front

What is a particle accelerator?

Back

A particle accelerator is a device that moves nuclei faster and faster until they reach very high speeds.

Front

Who discovered the nucleus of an atom?

Back

Ernest Rutherford discovered the nucleus of an atom.

Front

What is the group and period of an element in the periodic table?

Back

The group is the column and the period is the row in which the element is located.

Front

What are elements with similar chemical characteristics found in?

Back

Elements with similar chemical characteristics are found in the same group (column) on the periodic table.

Front

How many electrons does Oxygen (O) have?

Back

Oxygen (O) has 8 electrons.

Front

What is an atom?

Back

An atom is the smallest unit of matter that retains the properties of an element.

Front

What is the atomic number?

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 periodic table?

Back

The periodic table is a tabular arrangement of elements organized by increasing atomic number and grouped by similar properties.

Front

What are groups in the periodic table?

Back

Groups are vertical columns in the periodic table that contain elements with similar chemical properties.

Front

What are periods in the periodic table?

Back

Periods are horizontal rows in the periodic table that indicate the number of electron shells in the elements.