For the following statements, write T for True and F for False.
(a) J.J. Thomson proposed that the nucleus of an atom contains only nucleons.
(b) A neutron is formed by an electron and a proton combining together. Therefore, it is neutral.
(c) The mass of an electron is about 1/2000 times that of proton.
(d) An isotope of iodine is used for making tincture iodine, which is used as a medicine.
NCERT Class IX
Sciences - Exemplar Problems
Chapter 4. Structure of the Atom
Answers
Answered by
62
a) FALSE.
It was not proposed by J.J . Thomson.Because in J.J Thomson's model nucleus was not present.
b) FALSE
Because neutron is an independent subatomic particle of an atom.
c) TRUE
Mass of electron is 1/1840 times ,i.e about 1/2000 times that of the Proton.
d) FALSE
Because tincture of iodine is made by dissolving normal iodine in alcohol it is not obtained from the isotope of Iodine.
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Hope this will help you....
It was not proposed by J.J . Thomson.Because in J.J Thomson's model nucleus was not present.
b) FALSE
Because neutron is an independent subatomic particle of an atom.
c) TRUE
Mass of electron is 1/1840 times ,i.e about 1/2000 times that of the Proton.
d) FALSE
Because tincture of iodine is made by dissolving normal iodine in alcohol it is not obtained from the isotope of Iodine.
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Hope this will help you....
Answered by
25
♣Hey there♣
⚊⚊⚊⚊⚊⚊⚊⚊⚊⚊⚊⚊
a. False
b.false
c. True
d.false
⚊⚊⚊⚊⚊⚊⚊⚊⚊⚊⚊⚊
Thanks
⚊⚊⚊⚊⚊⚊⚊⚊⚊⚊⚊⚊
a. False
b.false
c. True
d.false
⚊⚊⚊⚊⚊⚊⚊⚊⚊⚊⚊⚊
Thanks
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