Online teaching



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

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

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