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Morgarella [4.7K]
1 year ago
10

What is the general name of the elements whose properties are intermediate between those of metals and non-metals ?

Chemistry
1 answer:
siniylev [52]1 year ago
6 0

The general name of the elements whose properties are intermediate between those of metals and non-metals is known as metalloids.

Metalloid, in chemistry, is defined as an imprecise term used to describe a chemical element that forms a simple substance having properties intermediate between those of a typical metal and a typical non-metal. Most commonly used examples of metalloids are arsenic, boron, germanium, silicon, antimony, tellurium and pollanium.

We can identify metalloids in the modern periodic table by locating a zig-zag line which separates metals from non-metals. The borderline elements which are metalloids are - boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po) - This elements exhibit properties similar to both metals and nonmetals and are called metalloids.

Learn more about metalloids from the link given below.

brainly.com/question/10139108

#SPJ4

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Which subatomic particle can change the molecular geometry of a molecule?
emmainna [20.7K]

Answer:

Electrons

Explanation:

According to the Valence Shell Electron Pair Repulsion Theory (VSEPR), the geometry of a molecule depends on the number of electron pairs (regions of electron density) on the central atom of the molecule. Electron pairs on the valence shell of the molecule tend to position themselves as far apart in space as possible to minimize repulsion between them. Hence, the orientation of these electron pairs is the ultimate determinant of the observed geometry of a molecule.

Lone pairs of electrons cause more repulsion than bond pairs of electrons on the central atom of a molecule. Hence when the central atom of a molecule contains lone pairs of electrons, the molecular geometry is usually distorted from the expected geometry on the basis of VSEPR theory.

Hence, electrons are the subatomic particles which are responsible for any change in the observed molecular geometry of a molecule.

6 0
3 years ago
When 2.50 g of an unknown weak acid (ha) with a molar mass of 85.0 g/mol is dissolved in 250.0 g of water, the freezing point of
baherus [9]
When dT = Kf * molality * i
                = Kf*m*i
and when molality = (no of moles of solute) / Kg of solvent
                               = 2.5g /250g x 1 mol /85 g x1000g/kg
                               =0.1176 molal
and Kf for water = - 1.86 and dT = -0.255
by substitution 
0.255 = 1.86* 0.1176 * i
∴ i = 1.166
when the degree of dissociation formula is: when n=2 and  i = 1.166
a= i-1/n-1 = (1.166-1)/(2-1) = 0.359 by substitution by a and c(molality) in K formula
∴K = Ca^2/(1-a)
     = (0.1176 * 0.359)^2 / (1-0.359)
     = 2.8x10^-3



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In the follow

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3 years ago
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