
hóa
Quiz
•
Physics
•
10th Grade
•
Practice Problem
•
Hard
Tuấn Anh Nguyễn
FREE Resource
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31 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
hạt mang điện trong hạt nhân ng tử là
e
n
p
n p
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
nitrogen gồm 2 đồng vị 14/7N (99,63) và 15/7( 0,37). Ntk tb của nitrogen
14.7
14.0
14.4
13.7
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
một ng tố R có cấu hình 3s4, công thức hợp chất của R với hydrogen và công thức oxide cao nhất là
RH2, RO
RH2,RO3
RH2, RO2
RH5, R2O5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
ion nào ko phải ion đơn ng tử
al3+
no3-
br-
ca2+
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
tính base NaOH, Mg(OH)2, Al(OH)3 giảm dần
NaOH, Mg(OH)2,Al(OH)3
al(oh)3, mg(oh)2,naoh
mg(oh)2, al(oh)3,naoh
mg(oh)2,naoh, al(oh)3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Z=20
chu kì 4, nhóm VIIIB
chu kì 4, nhóm VIIB
chu kì 4, nhóm IIA
chu kì 3, nhóm IIB
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
ng tố Ca có số hiệu ng tử là 20, phát biểu k đúng về Ca
số e ở vỏ Ca là 20
vỏ Ca có 4 lớp e, lớp ngoài có 2e
hạt nhân của Ca có 20p
Ca là phi kim
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