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tresset_1 [31]
3 years ago
8

How do you work out the relative atomic mass?

Chemistry
1 answer:
sdas [7]3 years ago
6 0
To calculate the relative formula mass:

Write the formula of the compound.
Write the numbers of each atom in the formula.
Insert the relative atomic mass for each type of atom.
Calculate the total mass for each element.
Add up the total mass for the compound.

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Which group in the periodic table contains the three elements with the highest electrical conductivities?
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Answer:

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These elements show highest electrical conductivity.

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3 years ago
Which element would mostly have chemical properties similar to that of magnesium (Mg)?
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The elements of same group are placed in same group as they have similar properties. So Calcium is the element which resembles Mangesium.

Calcium and Magnesium both are alkaline earth metals.

They have similar properties as they have similar outer or valence shell electronic configuration

The general electronic configuration of alkaline earht metal is ns2

The electronic configuration of Mg [atomic number 12] and Ca [atomic number 20] are

[Ne]3s^{2}  and [Ar]4s^{2} respectively.


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