What is the atomic number of Beryllium?
...What is the atomic number of Beryllium?
13
8
4
77
Correct answer is C
No explanation has been provided for this answer.
Which of the following compounds is NOT an isomers of 2,2 dimethylbutane? ...
The following are uses of sulphur except...
X(g) → X−(g). The type of energy involved in the above transformation is?...
Sugars can be hydrolyzed at room temperature by the action of ...
The species with no electron in the 3d-orbital is ...
A white precipitate was formed when BaCl2(aq) was added to an aqueous solution of a salt X. ...
Which group does calcium belong to in the periodic table? ...