Unsur A mempunyai 10 proton dan 12 netron, sedangkan unsur B mempunyai nomor massa 23 dan nomor atom 11. Kedua unsur tersebut termasuk

ATOM 1

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Pekik Wicaksono
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40 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Isoton
Isotop
Isobar
Isokhlor
Isomer
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jumlah proton, elektron, dan neutron dari 11Na23 adalah …
11, 11, dan 12
23, 11, dan 11
11, 23, dan 11
11, 12, dan 11
11, 10, dan 12
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Suatu unsur netral mempunyai 2 elektron dalam kulit pertama, 8 elektron dalam kulit kedua, dan 7 elektron dalam kulit ketiga. Nomor atom unsur itu adalah:
2
6
7
8
12
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Atom unsur A memiliki jumlah proton sebanyak 19 dan netron sebanyak 20 maka pernyataan yang tidak benar untuk atom unsur A adalah …
Nomor atom 19
19 elektron
39 nukleon
Notasi 1939A
Massa atom relatif 20
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Suatu isotop mempunyai 21 neutron dan nomor massa 40. Unsur tersebut mempunyai elektron sebanyak ….
19
13
16
15
8
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pasangan unsur di bawah ini yang merupakan isotop adalah....
2311Na dan 2311Mg
3115S dan 3216S
23392U dan 23892U
3215P dan 3216S
3215P dan 2311Mg
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diketahui unsur 3115P, 3016Q,3215R dan 3216S. Unsur – unsur yang merupakan isobar adalah ….
P dan Q
Q dan R.
P dan R
Q dan S
R dan S
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