Kalium mempunyai nomor atom 19 dan nomor massa 39. Jumlah elektron pada ion Kalium adalah . . .
STURKTUR ATOM DAN SISTEM PERIODIK UNSUR

Quiz
•
Chemistry
•
11th Grade
•
Hard
FARIDA YULINDA
Used 3+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
9
39
19
20
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Lambang suatu unsur dapat disimpulkan bahwa pada satu atom unsur X mempunyai. . .
18 neutron dan 18 proton
22 neutron dan 22 proton
40 proton dan 18 elektron
18 proton dan 22 neutron
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Partikel dasar dalam atom terdiri dari . . . .
Proton, elektron, dan positron
Proton, neutron, dan nukleon
Proton, elektron, dan neutron
Positron, nukelon, dan elektron
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dalam suatu atom elektron di sekitar inti atom dan tidak jatuh ke dalam, hal ini disebabkan karena. . . .
elektron bergerak dengan lintasan dan jarak tertentu dari inti atom
gaya tolak-menolak antara elektron dan inti atom, relatif besar
adanya penghalang antara inti atom dan elektron
elektron dalam kondisi diam di sekitar inti atom
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
maka jumlah elektron, proton dan neutron adalah….
23 proton, 12 elektron, 11 neutron
11 proton, 11 elektron, 12 neutron
11 proton, 12 elektron, 23 neutron
12 proton, 11 elektron, 11 neutron
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Nilai keempat bilangan kuantum terakhir dari atom Cl yang mempunyai nomor atom 17 adalah . . . .
n = 3, l = 1, m = +1, s = + ½
n = 3, l = 1, m = 0 , s = – ½
n = 3, l = 1, m = 0 , s = + ½
n = 3, l = 1, m = -1 , s = – ½
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
elektron valensi unsur Fe yang memiliki nomor atom 26 dan nomor massa 56 adalah . .
1
2
3
4
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