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 boiling point of water is higher than the boiling point of ethanol because ...
A chemical system is at equilibrium when ...
A gas that will turn orange potassium heptaoxodichromate (lV) solution to clear green is? ...
Which of the following compounds would release hydrogen when reacted with sodium metal? I.&nb...
Which of the following compounds is not a double salt? ...
What is the atomic number of Lawrencium? ...