Question

The First Forty Elements
Across
12 cu
Down
2. W
10. He
4.
6.
&
S
V
Na
5S
21​

Answer 1

Answer:

hydrogen.helium . lithium.beryllium . boron

.carbon.nitrogen . oxygen. fullerine.neon.

Answer 2

1. Hydrogen
2. helium
3. lithium
4. berrylium
5. boron
6. carbon
7. nitrogen
8. oxygen
9. fluorine
10. neon
11. sodium
12. magnesium
13. aluminium
14. silicon
15. phophorus
16. sulphur
17. chlorine
18. argon
19. pottasium
20. calcium
21. Scandium
22. titanium
23. vanadium
24. chromnium
25. manganese
26. iron
27. cobalt
28. nickel
29. copper
30. zinc
31. Gallium
32. germaium
33. arsenic
34. selenium
35. bromine
36. krypton
37. rubidium
38. strontium
39. ytterium
40. zirchonium

Hope it helps mate

$\bold{good \: luck}$