Periodic Table
Across
- 2. located in the center of the atom, made of protons and neutrons
- 4. Place where electrons of an atom are located
- 5. An abbreviation for an element
- 6. smallest piece of matter that still has the properties of the element
- 7. Horizontal rows of elements that have increasing atomic numbers
- 8. This element is found in Group 12 and Period 5
- 9. To find this number add the protons and the neutrons
- 11. Negatively charged part of atom, not located in the nucleus
- 13. Part of the atom that has no charge, located in the nucleus
- 15. Horizontal rows of elements with similar characteristics
Down
- 1. Russian scientist who created the first Periodic Table
- 3. This is equal to the number of protons in an element
- 4. each one of these has its own atomic number
- 7. Positively charged part of the atom, located int he nucleus
- 10. This element has an atomic number of 38
- 12. Arranged the Periodic Table based on atomic number and is the one we use today
- 14. This element has an atomic mass of 222