Science

1234567891011121314
Across
  1. 4. Atomic mass unit used to measure the mass of atoms
  2. 5. Cloud: The area around the nucleus of an atom where electrons are most likely to be found
  3. 7. Subatomic particles that carry a positive charge.
  4. 10. Anything that has mass, and takes up space.
  5. 13. Subatomic particles that carry a negative charge.
  6. 14. Number: The sum of the number of protons and the number of neutrons in the nucleus of an atom
Down
  1. 1. Atomic Mass: The weighted average mass of all naturally occurring isotopes of the element.
  2. 2. Smaller particles that protons and neutrons are made of
  3. 3. The center core of the atom containing protons and neutrons
  4. 6. Subatomic particles that carry a neutral charge.
  5. 8. Atoms with the same number of protons and a different number of neutrons.
  6. 9. Shells: Outer rings of atoms that contain electrons. These shells orbit around the nucleus.
  7. 11. Number: The number of protons that an element contains
  8. 12. The smallest piece of an element that still holds the properties of the element.