Chemistry Test 158

The electrons, identified by quantum numbers n and l (i) n = 4, l = 1 (ii) n = 4, l = 0 (iii) n = 3, l = 2 (iv) n = 3, l = 1 can be placed in order of increasing energy, from the lowest to highest, as

Question 1/10

Release of neutron

Release of electron

Greater mass of products than initial material

Lesser mass of products than initial material

Question 2/10

Ethyl cyanide

Propyl cyanide

Methyl cyanide

None of the above

Question 3/10

Eu

La

Cd

Am

Question 4/10

increased ionic mobility of ions

100 percent electrolyte ionisation with natural dilution

increase in both ion numbers and ionic mobility

A rise in ion counts

Question 5/10

Te-Te

Se-Se

O-O

S-S

Question 6/10

250 ml

125 ml

100 ml

50 ml

Question 7/10

(iv) < (ii) < (iii) < (i)

(ii) < (iv) < (i) < (iii)

(i) < (iii) < (ii) < (iv)

(iii) < (i) < (iv) < (ii)

Question 8/10

nuclear masses

atomic numbers

nuclear neutron-proton number ratios

atomic masses

Question 9/10

Question 10/10

313 / 293

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