Atoms, Elements, Periodic Table

Front

What does the atomic number tell us?

Back

The atomic number tells us the number of protons in an atom.

Front

What are the majority of elements on the periodic table?

Back

The majority of elements on the periodic table are metals.

Front

Who is known as the father of the modern periodic table?

Back

Dimitri Mendeleev is known as the father of the modern periodic table.

Front

What are semiconductors?

Back

Semiconductors are materials, including Silicon and Germanium, that have properties between conductors and insulators.

Front

What are isotopes?

Back

Isotopes are atoms of the same element that have different atomic masses due to varying numbers of neutrons.

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means.

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 metalloids?

Back

Metalloids are elements that have properties of both metals and nonmetals, such as Silicon and Germanium.

Front

What is a proton?

Back

A proton is a positively charged particle found in the nucleus of an atom.

Front

What is a neutron?

Back

A neutron is a neutral particle found in the nucleus of an atom.