An element X has 127 neutrons and 82 electrons.
It...
An element X has 127 neutrons and 82 electrons.
Its atomic number is?
209
105
45
82
Correct answer is D
An atom that has equal number of protons and electrons is called a neutral atom.
With 82 electrons, the atomic number is also 82
The oxidation state of chlorine in NaClO\(_3\) is?...
When H2S is passed into a solution of iron (III) chloride, the solution turns ...
How many grams of H2SO4 are necessary for the preparation of 0.175 dm3 of M 6.00 M H2SO4? (S = 32...
The most suitable substance for putting out petrol fire is ...
The three-dimensional shape of methane is ...
The oxide that remains unchanged when heated in hydrogen is? ...