Question

D. Name the following: 1)The substances that undergo chemical change.
2) Neutral fundamental particle of an atom.
3) The vertical columns in the Periodic Table.
4) A chemical substance that changes the rate of a chemical reaction without itself undergoing any chemical change.
5) Basic unit of matter.​

Answer 1

Answer

1 - Reactants

2 - Neutron

3 - Groups/Families

4 - Catalyst

5 - Atom

Fun Facts

• Neutrons and protons, commonly called nucleons, are bound together in the dense inner core of an atom, the nucleus, where they account for 99.9 percent of the atom's mass.
• Due to their comparable chemical activity, the vertical columns of the periodic table are referred to as groups or families. Each element in a family has the same amount of valence electrons and exhibits comparable chemical characteristics. Periods are the horizontal rows of the periodic table.