Using the periodic table, choose the more reactive non-metal.

Br or As
and
Br and At

Question

Using the periodic table, choose the more reactive non-metal.

Br or As
and
Br and At

anonymous · Answer

@Chlorophyll 
@asnaseer 
@Calcmathlete

asnaseer · Answer

sorry - I am hopeless at Chemistry :(

anonymous · Answer

sorry to bother you guys ^^^ Im just desperate....Thx @asnaseer for taking interest

asnaseer · Answer

yw :) sorry I couldn't help.

anonymous · Answer

@TheViper

anonymous · Answer

Its okay

theviper · Answer

May this person help I m weak @ chemistry sorry
@apoorvk :)

anonymous · Answer

it ok thanks anyway

apoorvk · Answer

Bromine and Arsenic (same period - IVth) - Bromine is a non-metal with one valency, whereas Arsenic shows semi-conductor like properties and its valency is 5. The nuclear attraction is higher on the valence shell for Br, as well as it needs just one electron to satisfy its octet - so Br is definitely more reactive here.

anonymous · Answer

so Br is more reactive than As

apoorvk · Answer

Bromine and Astatine (At) [same group] - again I would say Br is more reactive - again because Br is more electronegative (due to relative proximity of the valence shell from the nucleus).

theviper · Answer

$$\Huge{\color{green}{\cal{It \space helped :)}}}$$

apoorvk · Answer

Yes, in both cases here, Br.

anonymous · Answer

thank you sooooo much @apoorvk....YOU TOO @TheViper

theviper · Answer

hehe welcome:)
Thanx apporvk bhaiya :)