Chemistry, 28.06.2019 05:00 salsaanddoritos899

Agroup viia atom combines with a group ia atom. the bond formed between them will most likely be: a)covalent b)ionic c)50% covalent, 50% ionic d)metallic

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Answer from: dianaparra826

The correct answer is option B.

Explanation:

Ionic bond is formed when there is complete transfer of electrons from one element to another.Covalent bond is formed by the sharing of electrons between two elements.Metallic bond is formed when two metals combine together.

Electronic Configuration of Group VII-A : ns^2np^5

This group require 1 electron to attain stable electronic configuration.

Electronic configuration of Group I-A : ns^1

This group will loose 1 electron to attain stable electronic configuration.

So, there will be complete transfer of electron from Group VII-A to Group I-A and hence, will form ionic bond between them.

Hence, the correct option is B.

Answer from: Quest

answer: - 3.) the oxidation state of nitrogen in no changes from +2 to 0, and the oxidation state of carbon in co changes from +2 to +4 as the reaction proceeds.

solution: - as per the rules, oxidation number of oxygen in its compounds is -2. the sum of oxidation numbers of all the elements of a molecule or compound is zero.

also, the oxidation number in elemental form is zero.

in no, the oxidation number of o is -2 so the oxidation number of n is +2 so that the sum is zero.

similarly, the oxidation number of c in co is +2 and o is -2.

on product side the oxidation number of n is 0 as it is in the elemental form( $n_2$ ) .

oxidation number of c in carbon dioxide is +4 as there are two oxygen in it and we know that each oxygen is -2.

so, oxidation number of n is changing from +2 to 0 and the oxidation number of c is changing from +2 to +4.

since nitrogen is reduced and hence no is acting as an oxidizing agent. carbon is oxidized and so co is acting as a reducing agent.

so, the right choice is number 3.)the oxidation state of nitrogen in no changes from +2 to 0, and the oxidation state of carbon in co changes from +2 to +4 as the reaction proceeds.

Answer from: Quest

You use the atomic number to find out how many protons and neutrons there are in the atom. you use the atomic mass to find out how many protons and electrons there are in the atom.

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Agroup viia atom combines with a group ia atom. the bond formed between them will most likely be:...