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Standard IX

Chemistry

Atomic Number

The differenc...

Question

The difference between the atom $U^{235}$ and $U^{238}$ is that

U^{238}

contains 3 neutrons more

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U^{238}

contains 3neutrons and 3 electrons more

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U^{238}

contains 3 protons more

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U^{238}

contains 3 proton and 3 electron more

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Solution

The correct option is A $U^{238}$ contains 3 neutrons more
$U - 238$ has mass number(proton $92 +$ neutron $146 = 238$ )
$U - 235$ has mass number (proton $- 92 +$ neutron $143 = 235$ )

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Similar questions

Q. The difference between

U^{235}

and

U^{238}

atoms is that

U^{238}

contains

Q. Assertion :Enrichment of

U^{235}

from a mixture containing more abundant

U^{238}

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Q. In an ore containing uranium the ratio of

U^{238}

P b^{206}

nuclei in

3

. Calculate the age of ore, assuming that all the lead present in the ore is the final stable product of

U^{238} . t_{1 / 2}

for

U^{238} = 4.5 \times 10^{9} y e a r

A sample of uranium rock from moon contains equimolar amounts of $U^{238}$ and $P b^{206}$ . The age of the rock will be $(t_{\frac{1}{2}} f o r U^{238} = 4.5 \times 10^{9} y r s)$

Q. In an ore containing uranium, the ratio of

U^{238}

P b^{206}

3

. Calculate the age of the ore, assuming that all the leas present in the ore is the final stable product of

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. Take the half-life of

U^{238}

to be

4.5 \times 10^{9}

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The difference between the atom U235 and U238 is that

The correct option is A U238 contains 3 neutrons moreU−238 has mass number(proton 92+ neutron 146=238) U−235 has mass number (proton−92+ neutron 143=235)

The difference between the atom $U^{235}$ and $U^{238}$ is that

The correct option is A $U^{238}$ contains 3 neutrons more
$U - 238$ has mass number(proton $92 +$ neutron $146 = 238$ )
$U - 235$ has mass number (proton $- 92 +$ neutron $143 = 235$ )