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Author: piqué sira
Description:
Keywords: , , , , , , online teaching

Content:
Definitions:
0. sofre
1. sodi
2. clor
3. liti
4. Ferro
5. alumini
6. Seleni
7. nitrogen
8. hidrogen
9. potassi
10. bor
11. cesi
12. plom
13. oxigen
14. xenó
15. Bari

Answers:
0. Li
1. O
2. Al
3. S
4. na
5. B
6. cs
7. Ba
8. H
9. fe
10. Se
11. Cl
12. Pb
13. K
14. xe
15. N
.