Advertisements
Advertisements
प्रश्न
How many atoms of each kind are present in the following molecule:
Calcium oxide
Advertisements
उत्तर
Calcium oxide (CaO) has one atom of calcium and one atom of oxygen. The calcium atom valence shell has two electrons. As a result, it contributes two electrons to complete the octet, while oxygen requires two electrons to complete the outermost shell.
APPEARS IN
संबंधित प्रश्न
State differences between the properties of ionic compounds and covalent compounds.
State the following is a reduction reaction or oxidation reaction.
\[\ce{A^3+ + e- -> A^2+}\]
Why do `""_17^35"CI"` and `""_17^37"CI"` have the same chemical properties? In what respect do these atoms differ?
Give reason
Argon does not react.
Write the formula of its (X)
sulphate
nitrate
phosphate
carbonate
hydroxide.
Give the orbital diagram of the following:
Nitrogen
Identify the following reaction as either oxidation or reduction:
K - e- → K+
Draw the geometric atomic structure of the following atom showing the number of electrons, protons and neutrons in them:
\[\ce{^40_20Ca}\]
The element that would form anion by gaining electrons in a chemical reaction is ______.
How many electrons are required or released by each atom in water molecule to attain the nearest noble gas configuration?
