Question

Arrange the following :
1. Cs, Na, Li, K,Rb (increasing order of metallic character)
2. Mg,Cl,Na,S,Si (decreasing order of atomic size)
3. Na, K, Cl,S,Si (increasing order of ionization energy)
4. Cl,F,Br,I (increasing order of electric affinity)
5. Ar,He,Ne (increasing order of number of electron shells)

Answer 1

Answer:

Answers are

Explanation:

1. As incresing order of metallic character means ascending order , Na, K, Rb, Cs.
2. As decreasing order of atomic size means descending order So, Na, Mg, Si, S, Cl.
3. As increasing order of ionization energy means ascending order So, K, Na, Si, S, Cl,
4. As increasing order of electron affinity means ascending order so, I, Br, F, Cl.
5. As increasing order in number of shells means ascending order so, He, Ne, Ar.

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Answer 2

Explanation:

1. Li, Na, K, Rb, Cs - Metallic characters defined as the reactivity of metals, which are all show in left side of the periodic table. In metallic character an element increases from top side to bottom side or right to left.
2. Cl, S, Si, Mg, Na - An atomic size is a chemical element that is used to measure the size of atoms. In atomic size an element decreases from left side to right side in the periodic table.
3. K, Na, Si, S, Cl - An energy of ionization refers to the energy amount that is required to remove an electron from a specific atom. It increases atom from left side to right side across periodic table.
4. I, Br, F, Cl - The electron affinity defined as the changes in energy that occurs when an atom gains an electron and releasing the energy.
5. He, Ne, Ar - An electron shells locates outside of an atom and it surrounds the atomic nucleus and it have one or more number of sub-shells or sub-levels.