Front

What is the lightest element in the periodic table?

Back

Hydrogen is the lightest element, with an atomic number of 1.

Front

Where are protons and neutrons located in an atom?

Back

Protons and neutrons are located in the nucleus of the atom.

Front

How many neutrons does an element with an atomic mass of 35 and an atomic number of 17 have?

Back

This element has 18 neutrons (35 - 17 = 18).

Front

What is the periodic table of elements?

Back

The periodic table is a tabular arrangement of elements ordered by atomic number, where elements in the same column have similar properties.

Front

Which part of the atom is the smallest?

Back

Electrons are the smallest part of the atom.

Front

What is an atom?

Back

An atom is the basic unit of matter, consisting of a nucleus surrounded by electrons.

Front

What are protons?

Back

Protons are positively charged particles found in the nucleus of an atom.

Front

What are neutrons?

Back

Neutrons are neutral particles found in the nucleus of an atom.

Front

What are electrons?

Back

Electrons are negatively charged particles that orbit the nucleus of an atom.

Front

What is atomic number?

Back

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