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This among the following elements has the tendency to form covalent compounds:
(1) Ba
(2) Be
(3) Mg
(4) Ca
Ans: Be
explain industrial manufacturing process of westron
What is meant by ''mass number''
If the atomic weight of an element is 23 times that of the lightest element and it has 11 protons, then it contains : (1)11 protons, 23 neutrons, 11 electrons (2)11 protons,
How many unpaired electrons in Fe (II)?
Q. Describe Peroxomonosulphuric Acid? It is also known as permonosulphuric acid. It is obtained by the action of chlorosulphuric acid on cold anhydrous hydrogen peroxide :
Be's 4th electron will have four quantum numbers: n l m s (1) 1 0 0 +1/2 (2) 1 1 +1 +1/2
find H^+ concentration if Ph=4.90
As electron moves away from the nucleus, its potential energy: (1) Increases (2) Decreases (3) Remains constant (4) None of these Ans: Increases
hypothesis for this lab "finding the missing mass"
Sulpha drugs: These are synthetic chemotherapeutic agents who consist of sulphonamide, -SO 2 NH 2 set in their organization. These were the firstly effective chemotherapeutic
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