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CHXI09:HYDROGEN

315517 Deuterium, an isotope of hydrogen is

1 radioactive

2 non-radioactive

3 heaviest

4 lightest

Explanation:

For, $_{1}^{2} D, \frac{n}{p} = \frac{1}{1} = 1$ .
Hence, it is a stable nucleus.

CHXI09:HYDROGEN

315515 The $n / p$ ratio for $_{1} H^{1}$ is

1 1

2 2

3 3

4 Zero

Explanation:

$n / p = 0 / 1 = 0$

CHXI09:HYDROGEN

315516 Radioactive elements emit $α,$ $β$ and $γ$ rays and are characterised by their halflives. The radioactive isotope of hydrogen is

1 Protium

2 Deuterium

3 Tritium

4 Hydronium

Explanation:

Nucleides with $n / p$ ratio $> 1.5$ are usually radioactive. $n / p$ for tritium is $2 / 1 = 2$ .

NCERT Exemplar

CHXI09:HYDROGEN

315518 Hydrogen has three isotopes, the number of possible diatomic molecules will be

1 3

2 6

3 9

4 12

Explanation:

The number of possible diatomic molecules for three isotopes of hydrogen will be
$^{1} H -^{1} H,^{1} H - D,^{1} H - T, D - D, D - T, T - T$ .

CHXI09:HYDROGEN

315519 Number of neutrons in three isotopes of hydrogen, protium, deuterium and tritium respectively is

1

0, 1, 2

2

1, 1, 1

3

2, 1, 0

4

2, 0, 1

Explanation:

Number of neutrons in protium, deuterium and tritium respectively is $= 0, 1$ and 2

CHXI09:HYDROGEN

315517 Deuterium, an isotope of hydrogen is

1 radioactive

2 non-radioactive

3 heaviest

4 lightest

Explanation:

For, $_{1}^{2} D, \frac{n}{p} = \frac{1}{1} = 1$ .
Hence, it is a stable nucleus.

CHXI09:HYDROGEN

315515 The $n / p$ ratio for $_{1} H^{1}$ is

1 1

2 2

3 3

4 Zero

Explanation:

$n / p = 0 / 1 = 0$

CHXI09:HYDROGEN

315516 Radioactive elements emit $α,$ $β$ and $γ$ rays and are characterised by their halflives. The radioactive isotope of hydrogen is

1 Protium

2 Deuterium

3 Tritium

4 Hydronium

Explanation:

Nucleides with $n / p$ ratio $> 1.5$ are usually radioactive. $n / p$ for tritium is $2 / 1 = 2$ .

NCERT Exemplar

CHXI09:HYDROGEN

315518 Hydrogen has three isotopes, the number of possible diatomic molecules will be

1 3

2 6

3 9

4 12

Explanation:

The number of possible diatomic molecules for three isotopes of hydrogen will be
$^{1} H -^{1} H,^{1} H - D,^{1} H - T, D - D, D - T, T - T$ .

CHXI09:HYDROGEN

315519 Number of neutrons in three isotopes of hydrogen, protium, deuterium and tritium respectively is

1

0, 1, 2

2

1, 1, 1

3

2, 1, 0

4

2, 0, 1

Explanation:

Number of neutrons in protium, deuterium and tritium respectively is $= 0, 1$ and 2

CHXI09:HYDROGEN

315517 Deuterium, an isotope of hydrogen is

1 radioactive

2 non-radioactive

3 heaviest

4 lightest

Explanation:

For, $_{1}^{2} D, \frac{n}{p} = \frac{1}{1} = 1$ .
Hence, it is a stable nucleus.

CHXI09:HYDROGEN

315515 The $n / p$ ratio for $_{1} H^{1}$ is

1 1

2 2

3 3

4 Zero

Explanation:

$n / p = 0 / 1 = 0$

CHXI09:HYDROGEN

315516 Radioactive elements emit $α,$ $β$ and $γ$ rays and are characterised by their halflives. The radioactive isotope of hydrogen is

1 Protium

2 Deuterium

3 Tritium

4 Hydronium

Explanation:

Nucleides with $n / p$ ratio $> 1.5$ are usually radioactive. $n / p$ for tritium is $2 / 1 = 2$ .

NCERT Exemplar

CHXI09:HYDROGEN

315518 Hydrogen has three isotopes, the number of possible diatomic molecules will be

1 3

2 6

3 9

4 12

Explanation:

The number of possible diatomic molecules for three isotopes of hydrogen will be
$^{1} H -^{1} H,^{1} H - D,^{1} H - T, D - D, D - T, T - T$ .

CHXI09:HYDROGEN

315519 Number of neutrons in three isotopes of hydrogen, protium, deuterium and tritium respectively is

1

0, 1, 2

2

1, 1, 1

3

2, 1, 0

4

2, 0, 1

Explanation:

Number of neutrons in protium, deuterium and tritium respectively is $= 0, 1$ and 2

CHXI09:HYDROGEN

315517 Deuterium, an isotope of hydrogen is

1 radioactive

2 non-radioactive

3 heaviest

4 lightest

Explanation:

For, $_{1}^{2} D, \frac{n}{p} = \frac{1}{1} = 1$ .
Hence, it is a stable nucleus.

CHXI09:HYDROGEN

315515 The $n / p$ ratio for $_{1} H^{1}$ is

1 1

2 2

3 3

4 Zero

Explanation:

$n / p = 0 / 1 = 0$

CHXI09:HYDROGEN

315516 Radioactive elements emit $α,$ $β$ and $γ$ rays and are characterised by their halflives. The radioactive isotope of hydrogen is

1 Protium

2 Deuterium

3 Tritium

4 Hydronium

Explanation:

Nucleides with $n / p$ ratio $> 1.5$ are usually radioactive. $n / p$ for tritium is $2 / 1 = 2$ .

NCERT Exemplar

CHXI09:HYDROGEN

315518 Hydrogen has three isotopes, the number of possible diatomic molecules will be

1 3

2 6

3 9

4 12

Explanation:

The number of possible diatomic molecules for three isotopes of hydrogen will be
$^{1} H -^{1} H,^{1} H - D,^{1} H - T, D - D, D - T, T - T$ .

CHXI09:HYDROGEN

315519 Number of neutrons in three isotopes of hydrogen, protium, deuterium and tritium respectively is

1

0, 1, 2

2

1, 1, 1

3

2, 1, 0

4

2, 0, 1

Explanation:

Number of neutrons in protium, deuterium and tritium respectively is $= 0, 1$ and 2

CHXI09:HYDROGEN

315517 Deuterium, an isotope of hydrogen is

1 radioactive

2 non-radioactive

3 heaviest

4 lightest

Explanation:

For, $_{1}^{2} D, \frac{n}{p} = \frac{1}{1} = 1$ .
Hence, it is a stable nucleus.

CHXI09:HYDROGEN

315515 The $n / p$ ratio for $_{1} H^{1}$ is

1 1

2 2

3 3

4 Zero

Explanation:

$n / p = 0 / 1 = 0$

CHXI09:HYDROGEN

315516 Radioactive elements emit $α,$ $β$ and $γ$ rays and are characterised by their halflives. The radioactive isotope of hydrogen is

1 Protium

2 Deuterium

3 Tritium

4 Hydronium

Explanation:

Nucleides with $n / p$ ratio $> 1.5$ are usually radioactive. $n / p$ for tritium is $2 / 1 = 2$ .

NCERT Exemplar

CHXI09:HYDROGEN

315518 Hydrogen has three isotopes, the number of possible diatomic molecules will be

1 3

2 6

3 9

4 12

Explanation:

The number of possible diatomic molecules for three isotopes of hydrogen will be
$^{1} H -^{1} H,^{1} H - D,^{1} H - T, D - D, D - T, T - T$ .

CHXI09:HYDROGEN

315519 Number of neutrons in three isotopes of hydrogen, protium, deuterium and tritium respectively is

1

0, 1, 2

2

1, 1, 1

3

2, 1, 0

4

2, 0, 1

Explanation:

Number of neutrons in protium, deuterium and tritium respectively is $= 0, 1$ and 2

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