Simple!
Atomic number= number of protons AND number of electrons (in an atom)
Mass number= number of neutrons
Answer:
одговор:
око 1143,9 грама О2
Explanation:
Један мол идеалног моноатомског гаса на 1 атм, 300 К пролази процес у коме је притисак гаса 8 .
There are 0.54 moles of sodium carbonate are contained by 57.3 grams of sodium carbonate.
we can calculate number of moles in a compound by dividing number of grams of compound by the molar mass of the compound.
molar mass of sodium carbonate = 105.987 g/mol
now, 57.3 / 105.987 = 0.54 moles
Heat can be transferred from one material to another by direct touch (conduction), by differences in density of a fluid (temperature difference), and by RADIATION
The trend for the radii is Mg²⁺ < Na+ < Ne <F⁻
<h3>What does Ionic size varies with number of protons ?</h3>
With the increase in number of protons in the nucleus the electrons are more attracted towards nucleus and so the ionic radius decreases.
Ionic size increases with the addition of electrons and ionic size decreases with the loss of electrons.
Higher is the atomic number, higher will be the effective nuclear charge, lower will be the size.
F⁻
no. of proton=9
no of electron = 10
Na+
no. of proton=11
no of electron=10
Mg²⁺
no. of proton=12
no of electron=10
Ne
no. of proton=10
no of electron=10
Mg²⁺ < Na+ < Ne <F⁻
Therefore the trend for the radii is Mg²⁺ < Na+ < Ne <F⁻
To know more about effect of protons on Ionic Radius
brainly.com/question/9444116
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