Skip to content
MCQtimes.com
GK
Pakistan Studies
Current Affairs
Islamic Studies
English
MCQtimes.com
Toggle Menu
Atoms and Atom Model
Home
/
General Science
/
General Science for Class 7
/
Atoms and Atom Model
- Page 19
Show/Hide Answers
Atoms and Atom Model
To study the changes that occur during photosynthesis,
carbon-12 is added to carbon dioxide
carbon-13 is added to carbon dioxide
carbon-14 is added to carbon dioxide
carbon-14 is added to carbon monoxide
Author:
rikazzz
Comment
Atoms and Atom Model
The number of protons and electrons in an atom of uranium is
90
91
92
94
Author:
rikazzz
Comment
Atoms and Atom Model
The symbol of Nitrogen is
Bo
C
N
Br
Author:
rikazzz
Comment
Atoms and Atom Model
The ionic chemical formula of ‘chlorine’ is
Cl
–
Cl
+
Cl
–
Cl
+
Author:
rikazzz
Comment
Atoms and Atom Model
When shell L is completed, next electron moves to
shell M
shell S
shell P
shell F
Author:
rikazzz
Comment
Atoms and Atom Model
The symbol of “Boron” is
Bo
C
N
Br
Author:
rikazzz
Comment
Atoms and Atom Model
The smallest atom in ‘periodic table’ yet found is
hydrogen
helium
lithium
magnesium
Author:
rikazzz
Comment
Page navigation
Previous Page
Previous
1
…
17
18
19
Go to Page
Light
Dark
GK
Pakistan Studies
Current Affairs
Islamic Studies
English