The Periodic Table and The Elements
Across
- 1. What family of elements is in the leftmost column of the Periodic Table? (6, 6)
- 5. An ________ is a negatively charged subatomic particle.
- 7. The majority of the elements in the periodic table are _______.
- 9. A vertical column in the periodic table is called a _______.
- 11. What is the name of the family of elements that has a full outer shell of electrons? (5, 5)
- 13. What is the abbreviation used in the Periodic Table for helium?
- 15. What are the horizontal rows of the Periodic Table called?
Down
- 2. Elements in the Periodic Table are listed in order of their ________.
- 3. Who is the scientist usually credited with inventing the Periodic Table? (6, 10)
- 4. These elements, like alkali metals, are very reactive.
- 6. The _______ is a subatomic particle which has a mass equal to that of a proton.
- 8. An atom or molecule with a negative electric charge due to the loss or gain of one or more electrons.
- 10. The atomic number of an atom is the number of ______ in the atom's nucleus.
- 12. Which of the following is the abbreviation for the element gold?
- 14. What is the capacity of the first electron shell?