Answers.
Atoms - CORRECT ANSWER Basic unit of matter
Elements - CORRECT ANSWER Cannot be broken down into any other simpler substance
Nucleus - CORRECT ANSWER Center of an atom
Protons - CORRECT ANSWER Positive charge
Electron - CORRECT ANSWER Negative charge
Neutrons - CORRECT ANSWER No charge
Mass - CORRECT ANSWER The amount of matter in an object
Matter - CORRECT ANSWER Anything that has mass and takes up space
atomic number - CORRECT ANSWER the number of protons in an atom
atomic mass number - CORRECT ANSWER the total number of protons and neutrons in an atom's
nucleus
periodic table - CORRECT ANSWER A chart of the elements showing the repeating pattern of their
properties