Suaatu atom unsur mempunyai nomor atom 19 dan nomor massa 39 , berapakah jumlah electron yang dimiliki atom unsur tersebut….
SOAL KIMIA DISEKITAR KITA

Quiz
•
Chemistry
•
12th Grade
•
Medium
Sri Nurhidayati
Used 25+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
10
19
20
39
58
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dua atom unsur yang mempunyai nomor massa yang berbeda tetapi mempunyai no atom yang sama disebut....
isotop
isoton
isobar
isoelektronik
isomer
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Atom Unsur C memiliki no atom 6 dan no massa 13 , sementara atom unsur N memiliki no atom 7 dan no massa 14.
Kedua atom unsur tersebut bisa termasuk kelompok…….
isotop
isoton
isobar
isomer
isoelektronik
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pada teori atom mekanika Kuantum , electron-elektron dalam atom mengelilingi inti atom pada tingkat energy tertentu yang disebut juga kulit. Penamaan dari kulit pertama sampai kulit ke -6 adalah…….
N, M, O, P ,Q, R
L, M, N, O, P, Q
K, L, M, N, O, P
P, O, N, M, L, K
K, M, L, N, O, Q
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Alkohol merupakan senyawa yang setiap molekulnya tersusun dari 2 atom karbon, 6 atom hydrogen, dan 1 atom oksigen. Penulisan rumus molekul alkohol yang benar adalah…..
C2 H6O
(C2H6O)2
(CH3)O
(CH3)2O
2C2H6O
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Persamaan reaksi : NaOH (aq) + H2SO4 (aq) → Na2SO4 (aq) + H2O (aq) perbandingan koefisien reaksi setelah disetarakan adalah….
1 : 1 : 1 : 2
2: 1 : 1 : 2
1 : 1 : 1 : 1
1 : 1 : 2 : 2
2 : 2 : 1 : 1
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Nama yang tepat untuk N2O4 adalah….
Nitrogen oksigen
Nitrogen tetraoksida
Dinitrogen oksida
Dinitrogen tetraoksida
Nitrogen pentaoksida
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