Periodic table

3. I have three valence electrons and I am in the second colum
5. My atomic number is 4 to the power of 2
8. You need me to survive, and plants don’t
9. I was named after a continent containing 51 countries, including Russia, amongst others
10. I was named after the creator of the periodic table
13. Y don’t you look in the 5th row for a metal
14. I was a man in the wizard of oz (My atomic number is 5 x 5 x 2)
15. I was named after a college, and I am a part of the Actinides
17. I was named after a country with 50 states and 14 to 16 territories
19. I was named after a country whose language half of the grade studies
20. I sound like a famous green superhero (family 4)

1. I am a form of nutrients that can be found in watermelon, “K”
2. My atomic symbol looks like something santa says, and my atomic number is brainrot
4. I was named after the scientist who discovered Radium
6. I think my atomic symbol is so CUte (Atomic number 29)
7. I was named after Mr Neils, and I have one more valence electron than seaborgium
11. My atomic number is brainrot and I am in the fifth column
12. Finding me will be quite a FEat ( Atomic weight 55.845)
16. I am named after one of the most famous scientists with CrAzY hair (my atomic number is 3 x 3 x 10 +9)
18. This element was discovered by a married couple of famous scientists who died of radiation poisoning