Place the following in order of increasing x-a-x bond angle, where a represents the central atom and x represents the outer atoms in each molecule.

Placing the compound in order of decreasing X-A-X bond angle, where A represents the central atom and X represents the outer atoms in each molecule.are

A bond that is strong is said to have higher bond energy as it takes more energy to break a strong bond.

As bond strength increases, the atoms in the held together and are pulled more tightly together.

A high bond energy implies that a bond is strong and the molecule that has that bond may be stable and less reactive.

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Place the following in order of decreasing X-A-X bond angle, where A represents the central atom and X represents the outer atoms in each molecule.

N2O NCl3 NO2⁻

Place the following in order of decreasing X-A-X bond angle, where A represents the central atom and X represents the outer atoms in each molecule.

N2O NCl3 NO2⁻

N2O > NO2⁻ > NCl3

Explanation:

The N2O with a Linear molecular geometry has a bond angle of 180 degrees.

The NO2 molecular geometry is trigonal pyramidal -with a bond angle of about 120 degrees

The NCl3 with a molecular geometry of trigonal pyramidal the bond angle will be about 109 degrees as a lone pair to pushes down the sides bonds.

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.