List each of the following characteristics for TEN ELEMENTS you studied in the L

Question

List each of the following characteristics for TEN ELEMENTS you studied in the Lab: (i) name (ii) symbol (iii) Atomic number (iv) Mass number (show calculation) (v) color (vi) neutrons(show calculation) (vii) electrons(show calculation) (viii) protons List FIVE elements with the LARGEST amount of available sample. Give name, atomic number, amount of sample in grams, kilograms, and ounces. List FIVE elements with the SMALLEST amount of available sample. Give name, atomic number, amount of sample in grams, kilograms, and ounces. From the elements you studied in the lab, give the (a) name (b) atomic number (c) number of protons (d) number of neutrons and (e) number of electrons for (i) three examples of ALKALI METALS (ii) three examples of HALOGENES (iii) two examples of ALKALI EARTH METALS (iv) five SOLIDS (v) two LIQUIDS (vi) three GASES (vii) five METALS (viii) five NONMETALS (ix) three TRANSITION METALS

Explanation / Answer

1. List of elements

Na

(i) name : sodium

(ii) symbol : Na

(iii) atomic number : 11

(iv) mass number : 23

(v) color : white

(vi) neutrons : 12

(vii) electrons : 11

(viii) protons : 11

Mg

(i) name : megnesium

(ii) symbol : Mg

(iii) atomic number : 12

(iv) mass number : 24

(v) color : gray

(vi) neutrons : 12

(vii) electrons : 12

(viii) protons : 12

Al

(i) name : aluminium

(ii) symbol : Al

(iii) atomic number : 13

(iv) mass number : 27

(v) color : white

(vi) neutrons : 14

(vii) electrons : 13

(viii) protons : 13

Cl

(i) name : chloride

(ii) symbol : Cl

(iii) atomic number : 17

(iv) mass number : 35

(v) color : colorless gas

(vi) neutrons : 18

(vii) electrons : 17

(viii) protons : 17

Similarly others can be done

4. (i) alkali metals : Na, K, Rb

(ii) examples of halogens : F, Cl, Br

(iii) alkali earth metals : Mg, Ca, Ba

(iv) solids : Na, K, Cs, Mg, Ca

(v) liquids : Hg, Br2

(vi) gases : Cl2, F2, Xe

(vii) metals : Na, K, Mg, Ca, Cs

(viii) non-metals : Cl, O, S

(ix) transition metals : Au, Ag, Pd

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