plzzzzzz answer this its urgent plzzz answer 6th question and 8th
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1
hey here is ur answer.......
8th....in atomic no. 18
no. of electrons..... 18
distribution.... 2,8,8
electronic configuration... 1s2,2s2,2p6,3s2,3p6
6 is long
hope hlp
if hlp mark as brainliest
8th....in atomic no. 18
no. of electrons..... 18
distribution.... 2,8,8
electronic configuration... 1s2,2s2,2p6,3s2,3p6
6 is long
hope hlp
if hlp mark as brainliest
Answered by
3
Hey !!!!!
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6.(1) Atoms Combine to form Molecules : Lets Understand it, It means That 2 or more simple and free atoms combine to for a molecule. Ex. O+O = O2. O2 is a molecule Whereas, O is Element/Atom...
6.(2) Atoms are neutral : Atoms Have to be Neutral as They cant carry charge, Where as, Molecules carry charge, Like O is Neither + or - Its Electrically Neutral... But, O2 is Negatively charged...
6.(3) Isotopes have similar chemical Properties : Yes, They do have, Because Isotopes are those with same chemical/ same elements, Since They are same elements, They have same properties..
6.(4) Nucleus Are + charge : Since, An Atom is Electrically Neutral, Its having Electrons with - charge, Hence to balance it and make atom neutral, There Nucleus is + charged....
8. Since The Atomic Number is 18, Total Electrons is 18...
Now, Distribution : 2,8,8 ... Since, 1st shell cant have more than 2 e-
Hence, distribution is 2,8,8.... Means The Atom is Inert gas named Argon....
Hence, Gas is Argon and distribution is 2,8,8
9. AlCl3 is formed Now, According to criss-cross method,
We Know That, Cl valency is 1
Hence, Al Valency is 3
Hence, The Valency of Aluminium is 3
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Hope This Helps.....!!!!
____________________________________
6.(1) Atoms Combine to form Molecules : Lets Understand it, It means That 2 or more simple and free atoms combine to for a molecule. Ex. O+O = O2. O2 is a molecule Whereas, O is Element/Atom...
6.(2) Atoms are neutral : Atoms Have to be Neutral as They cant carry charge, Where as, Molecules carry charge, Like O is Neither + or - Its Electrically Neutral... But, O2 is Negatively charged...
6.(3) Isotopes have similar chemical Properties : Yes, They do have, Because Isotopes are those with same chemical/ same elements, Since They are same elements, They have same properties..
6.(4) Nucleus Are + charge : Since, An Atom is Electrically Neutral, Its having Electrons with - charge, Hence to balance it and make atom neutral, There Nucleus is + charged....
8. Since The Atomic Number is 18, Total Electrons is 18...
Now, Distribution : 2,8,8 ... Since, 1st shell cant have more than 2 e-
Hence, distribution is 2,8,8.... Means The Atom is Inert gas named Argon....
Hence, Gas is Argon and distribution is 2,8,8
9. AlCl3 is formed Now, According to criss-cross method,
We Know That, Cl valency is 1
Hence, Al Valency is 3
Hence, The Valency of Aluminium is 3
__________________________________
Hope This Helps.....!!!!
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