Question

match the following
sodium. ( )p)1s2 2s2 2p6 3s2
neon. ( )Q)1s2 2s2 2p6 3s1
R)1s2 2s2 2p6 3s2 3p6
S)1s2 2s2 2ps​

Answer 1

Answer:

Atomic number of the given element =10

Electronic configuration =1s

2

,2s

2

p

6

1s

2

2s

2

2p

6

is electronic configuration of Ne.

1s

2

2s

2

2p

5

3s

1

is excited oxidation state

Answer 2

That is chlorine.

Cl

Symbol: Chlorine

Atomic Number: 17

Atomic Weight: 35.4527

Element Classification: Halogen

Discovered By: Carl Wilhelm Scheele

Discovery Date: 1774 (Sweden)

Name Origin: Greek: chloros (greenish yellow).

Density (g/cc): 1.56 (@ -33.6°C)

Melting Point (K): 172.2

Boiling Point (K): 238.6

Appearance: Greenish-yellow

disagreeable gas

Atomic Radius (pm): n/a

Atomic Volume (cc/mol): 18.7

Covalent Radius (pm): 99

Ionic Radius: 27 (+7e) 181 (-1e)

Specific Heat (@20°C J/g mol): 0.477 (Cl-Cl)

Fusion Heat (kJ/mol): 6.41 (Cl-Cl)

Evaporation Heat (kJ/mol): 20.41 (Cl-Cl)

First Ionizing Energy (kJ/mol): 1254.9

Oxidation States: 7

5

3

1

-1

Electronic Configuration: [Ne] 3s[2] 3p[5]