# Chemistry gcse question help

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#1
Hey , does anyone know how to answer this question please xAttachment 815940
Last edited by AliciaMayx; 2 years ago
0
2 years ago
#2
unable to open it. it says attachment not found. is it from any specific paper?

(Original post by AliciaMayx)
Hey , does anyone know how to answer this question please xAttachment 815940
0
#3
The question is:
The radius of an atom of element X is 1.2 x 10-10(10 to the power of -10)
The radius of the centre of the atom is 1/10000 the radius of an atom.
Calculate the radius of the centre of the atom of element X
0
2 years ago
#4
is it 1.2x10^6
(Original post by AliciaMayx)
The question is:
The radius of an atom of element X is 1.2 x 10-10(10 to the power of -10)
The radius of the centre of the atom is 1/10000 the radius of an atom.
Calculate the radius of the centre of the atom of element X
0
2 years ago
#5
You’re given the radius of the of the atom, and told the radius of the centre is 1/10000 of this. So you’re calculating 1/10000 of 1.2 x 10^-10
All you would have to do is divide 1.2 x 10^-10 by 10000
So the standard form answer would move 4 place values to the left
the standard form answer would be decreased by 4
And the final answer is 1.2 x 10^-14
0
2 years ago
#6
yes it is 1.2x10^-14 you are correct

(Original post by uniidk12345)
You’re given the radius of the of the atom, and told the radius of the centre is 1/10000 of this. So you’re calculating 1/10000 of 1.2 x 10^-10
All you would have to do is divide 1.2 x 10^-10 by 10000
So the standard form answer would move 4 place values to the left
the standard form answer would be decreased by 4
And the final answer is 1.2 x 10^-14
1
#7
Thank you xx
1
2 years ago
#8
(Original post by AliciaMayx)
Thank you xx
0
X

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