KCl Na Cl KPotassium NaSodium Saturday February 20

� �� KCl �� Na. Cl K=Potassium Na=Sodium Saturday, February 20, 2021 amin 001974@gmail. com 2

K �� Na Rb Na Cs Saturday, February 20, 2021 amin 001974@gmail. com 3

Ar �� Saturday, February 20, 2021 amin 001974@gmail. com 4

Dimitri Ivanovich Mendeleev Saturday, February 20, 2021 amin 001974@gmail. com 5

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Select an element Saturday, February 20, 2021 amin 001974@gmail. com 9

1 2 H Hydrogen He Helium Name: Hydrogen Symbol: H Atomic Mass: 1. 007 Atomic Num: 1 Melting Point: -259. 14 0 C Boiling Point: -252. 87 0 C Saturday, February 20, 2021 amin 001974@gmail. com Name: Helium Symbol: He Atomic Mass: 4. 003 Atomic Num: 2 Melting Point: 0. 95 K Boiling Point: 4. 22 K 10

3 11 Li Lithium Na Sodium Name: Lithium Symbol: Li Atomic Mass: 6. 9 Atomic Num: 3 Melting Point: 180. 540 C Boiling Point: 13420 C Saturday, February 20, 2021 amin 001974@gmail. com Name: Sodium Symbol: Na Atomic Mass: 23. 0 Atomic Num: 11 Melting Point: 97. 72 0 C Boiling Point: 883 0 C 11

13 18 Al Aluminium Ar Argon Name: Aluminium Symbol: Al Atomic Mass: 26. 98 Atomic Num: 13 Melting Point: 933. 47 K Boiling Point: 2792 K Saturday, February 20, 2021 amin 001974@gmail. com Name: Argon Symbol: Ar Atomic Mass: 39. 9 Atomic Num: 18 Melting Point: 83. 80 K Boiling Point: 87. 30 K 12

19 K Potassium Name: Potassium Symbol: K Atomic Mass: 39. 1 Atomic Num: 19 Melting Point: 336. 53 K Boiling Point: 1032 K Saturday, February 20, 2021 amin 001974@gmail. com 13

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��K �� 1 1 H 2 L 2 8 1 2 8 8 2 8 18 18 8 2 8 18 32 18 8 Li 3 Na 11 K 19 Rb 37 Cs 55 Fr 87 M N O P Q 1 1 1 Na �� amin 001974@gmail. com 15 �� Saturday, February 20, 2021 � � �