Periodic Table

Front

What is the positively charged subatomic particle contained in the nucleus of an atom?

Back

Proton

Front

What is a collection of atoms of one type that cannot be broken down into simpler substances by ordinary chemical or physical means?

Back

Element

Front

Who is known as the Father of the Periodic Table?

Back

Dimitri Mendeleev

Front

What is the mass of an atom, calculated by adding the number of protons and neutrons in the nucleus of the atom?

Back

Atomic mass

Front

What is a subatomic particle, contained in the nucleus of an atom, having the same mass as a proton but no electrical charge?

Back

Neutron

Front

What is the negatively charged subatomic particle that orbits the nucleus of an atom?

Back

Electron

Front

What is the term for the vertical columns in the periodic table that group elements with similar properties?

Back

Groups or Families

Front

What is the term for the horizontal rows in the periodic table?

Back

Periods

Front

What is the number that represents the number of protons in the nucleus of an atom?

Back

Atomic number

Front

What is the term for elements that have properties of both metals and nonmetals?

Back

Metalloids