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 noble gases is commonly found in the atmosphere? ...
When cathode rays are deflected onto the electrode of an electrometer, the instrument becomes? ...
What reaction takes place when palm-oil is added to potash and foam are observed? ...
Which of the following statements is correct about ionization energy? It ...
The luster of a metal is due to ...
The only metal that is anti-bacterial is? ...
Which of the following exhibits resonance? ...
The primary component of natural gas ...
The electronic configuration of element Z is 1s2 2s2 2p6 3s2 3p1. What is t...