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nomor massa dan nomor atom

Authored by martiyas puji rahayu

Chemistry

1st Grade

Used 14+ times

nomor massa dan nomor atom
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5 questions

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1.

FILL IN THE BLANK QUESTION

30 sec • 5 pts

Kalium mempunyai nomor atom 19 dan nomor massa 39. Jumlah elektron pada ion Kalium adalah . . .

2.

FILL IN THE BLANK QUESTION

30 sec • 5 pts

3.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Suatu unsur netral mempunyai 2 elektron dalam kulit pertama, 8 elektron dalam kulitkedua, dan 7 elektron dalam kulit ketiga. Nomor atom unsur itu adalah:

10

8

7

12

17

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Unsur Ca (Kalsium) memiliki nomor atom 20, dalam sistem periodik unsur terletak pada golongan ...

IA

IIA

IB

II B

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

4. Unsur Mn dengan nomor massa 55 dan nomor atom 25 memiliki jumlah proton, elektron, dan neutron berturut-turut adalah...

25, 55, 30

25, 30, 25

30, 25, 25

25, 55, 25

25, 25, 30

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