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Chemistry

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Luigi Torphy

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Cards in this guide (12)
How is electroplating done

the metal on which electroplating is to be done is taken as cathode ( negative electrode) . the metal of which electroplating is to be done is taken as anode ( positive electrode) and the salt solution of the metal of which electroplating is to be done is taken as electrolyte .

example-

if we want to electroplate iron with copper then iron is taken as cathode and copper is taken as anode and electrolyte is copper sulphate.Electroplating is the process of plating one metal onto another by hydrolysis, most commonly for decorative purposes. This is done through the use of copper in a copper sulfate bath.

What is a periodic trend

a numbering system for the periodic table.

Or a trend that periodically shows up.

What does the first ionization energy represent

The energy required to remove an electron from an atom

Which of the following phrases describes core electrons

electrons that are closet to the nucleus

How does a full octet affect trends among the noble gases

A full octet makes the noble gases nonreactive.

What makes the atomic radius change along a period in the periodic table

More protons in the nucleus pull the electrons in, making the atomic radius smaller.

Which of the following elements shows little reactivity Fluorine Sulfur Potassium or Argon

From the elements given, argon shows the least reactivity.

What elements have the highest and lowest ionization energy

Helium has the highest first ionization energy and francium has the lowest first ionization energy.

What would be the percent yield of the reaction be if the theoretical yield is 11.22 g but the actual yield was 8.67 g

In this case the yield is 77,27 %.

Which of the following elements has the lowest electronegativity ba ca mg sr

Barium(Ba)

What elements has the least reactive metal

magnesium (Mg)

Which of the following elements is the smallest

question: which of the following elements is the smallest?

answer: chlorine (CI)

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