Periodic Table/Chemical Formulas Review

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 does the atomic mass represent on the periodic table?

Back

The atomic mass is the weighted average mass of an element's isotopes, measured in atomic mass units (amu).

Front

How many protons does Boron have?

Back

Boron has 5 protons.

Front

What is the chemical symbol for Nickel?

Back

The chemical symbol for Nickel is Ni.

Front

Which element has the atomic number 14?

Back

Silicon has the atomic number 14.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

What is the significance of the periodic table's arrangement?

Back

The periodic table is arranged by increasing atomic number, which reflects the periodic trends in element properties.

Front

What is an isotope?

Back

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

Front

How many electrons does an atom of Rhodium have?

Back

An atom of Rhodium has 45 electrons.

Front

What is the chemical formula for water?

Back

The chemical formula for water is H2O, indicating it has two hydrogen atoms and one oxygen atom.