Electro valency of fluorine in magnesium fluoride is
1
2
4
zero

What is the valency of Fluorine in CaF_2

What is the valency of : fluorine in CaF_2

Calculate the percentage of : Fluorine in sodium aluminium fluoride [Na_(3)AlF_(6)] , to the nearest whole number. [Atomic Mass : Na = 23, Al = 27, F = 19]

Valency is also the number of electrons - donated or accepted by an atom so as to achieve stable electronic configuration of the nearest noble gas'. With reference to this definition - a] State what is meant by 'stable electronic configuration'. b] State why the valency of- (i) sodium, magnesium & aluminium is +1,+2& +3 respectively. ii] chorine, oxygen & nitroge is: -1, -2 & -3 respectively.

What is the valency of Magnesium?

How will you find the valency of chlorine, sulphur and magnesium ?

The distance between the hydrogen atom and the fluorine atom in a hydrogen fluoride (HF) is 0.92 Armstrong. the mass of hydrogen atom is 1 a.m.u and mass of fluorine atom is 19 a.m.u the position of the centre of mass of the hydrogen fluoride molecule is

A glass lens is coated on one side with a thin film of magnesium fluoride (MgF_(2)) to reduce reflection from the lens surface (Fig. 2.26). The Index of refraction of MgF_(2) is 1.38, that of the glass is 1.50. What is the least coating thickness that eliminates (via interference) the reflections at the middle of the visible specturm (lambda = 550nm) ? Assume that the light is approxmately perpendicular to the lens surface.

Valency of noble gases is zero.

Among noble gases (from He to Xe ) only xenon reacts with fluorine to form stable fluorides because xenon :