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Biology; Chemistry; Physics: Post your doubts here!

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I chose the larger atom one,the rest were of their ionic compounds.
Umm Mg ain,t larger than sodium ???Same number of shells...?
Electrostatic attraction is the reason tht bind metals together.infact checking other sites..Na is larger than Mg!
So for me C tht is electro static
 
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Umm Mg ain,t larger than sodium ???Same number of shells...?
Electrostatic attraction is the reason tht bind metals together.infact checking other sites..Na is larger than Mg!
So for me C tht is electro static
But you forgot about metallic bonding that holds the metal itself together
Acha acha yar theek hai smjh agayi ek number cut gya its fine :p
 
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Guys just wondering since our variant is 2 wht region is defined for this variant...Any one knows the exact range
 
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Guys just wondering since our variant is 2 wht region is defined for this variant...Any one knows the exact range
Coz I want to know the max time diff between Pak time and the region at the boundary of our zone..If it,s more than 3hrs then they wud have seen som stuff of this thread....Gr8 now I am feeling guilty!
 
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Acha acha yar theek hai smjh agayi ek number cut gya its fine :p
No you are right.
Electrostatic forces of attraction are found in ionic substances only. It is mentioned in the marking scheme as well. The first option was wrong. The next two referred to ionic substances, whereas these were metals
 
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No you are right.
Electrostatic forces of attraction are found in ionic substances only. It is mentioned in the marking scheme as well. The first option was wrong. The next two referred to ionic substances, whereas these were metals
http://www.chemguide.co.uk/atoms/bonding/metallic.html
A compr explanation...P.S Mg atoms are not larger than sodium..Infact smaller due to inceasing pull frm mg ion
 
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How are our papers going to be marked?
If I get, for example, 32/40, 60/75 and 18/30....
are they going to calculate the percantage like this: (32+60+18)/(145) * 100?
 
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How are our papers going to be marked?
If I get, for example, 32/40, 60/75 and 18/30....
are they going to calculate the percantage like this: (32+60+18)/(145) * 100?
No different components have different weight age as far as i know....
 
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