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Standard IX

Chemistry

Atomic Number

In case of ch...

Question

In case of chlorine $^{35} C l_{17}$ with atomic number $z = 17$ and mass number $(A) = 35$ has number of neutron equal to __________.

17

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35

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18

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20

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Solution

The correct option is C $18$
The numbers of neutrons are given as,

$n = A - z$

$n = 35 - 17$

$n = 18$

Thus, the numbers of neutrons are $18$ .

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Similar questions

Q. An atom has 17 electrons, 17 protons, 18 neutrons. Therefore which of the following is/are true?
(a) Its atomic number is 17
(b) Its mass number is 35

Q. An atom X has a mass number of 35 and contains 17 electrons. Find the number of protons, electrons, and neutrons, along with the atomic number of the ion X

^{-}

Q. An element with atomic number

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is placed in the group

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is placed below it. Element with atomic number

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is placed right to it. Which of the following statements are correct?

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b) Elements with same valency will have atomic number

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and

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c) Valency of element with atomic number

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and

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d) Element with atomic number

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and

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Q. An element with atomic number

17

is placed in the group

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of the long form periodic table. Element with atomic number

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is placed above and with atomic number

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is placed below it. Element with atomic number

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is placed left and with atomic number

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is placed right to it. Which of the following statements are correct:
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(ii) Elements with same valency have atomic number

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and

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and

35

is one
(iv) Element with atomic number

17

is more electronegative than elements with atomic number

16

and

35

Ordinary chlorine has has two isotopes $_{17}^{35} C L$ and $17^{37} C L$ in the ration of 3:1 Calculate the relative atomic mass of chlorine.

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In case of chlorine 35Cl17 with atomic number z=17 and mass number (A)=35 has number of neutron equal to __________.

The correct option is C 18The numbers of neutrons are given as, n=A−z n=35−17 n=18 Thus, the numbers of neutrons are 18.

In case of chlorine $^{35} C l_{17}$ with atomic number $z = 17$ and mass number $(A) = 35$ has number of neutron equal to __________.

The correct option is C $18$
The numbers of neutrons are given as,

$n = A - z$

$n = 35 - 17$

$n = 18$

Thus, the numbers of neutrons are $18$ .