Gaseous Radioactive element?

Gaseous Radioactive element?
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Radon
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The only radio active gaseous element?

Description : The only radio active gaseous element?

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Description : The only radio active element in gaseous form?

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Which is the most abundant gaseous element in the atmosphere ?

Description : Which is the most abundant gaseous element in the atmosphere ?

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A gaseous organic compound that is best known for its use in preservative solutions has the chemical formula HCHO (read: H - C - H CHEM-92; Short Answer: Give me the name and atomic number of the element I am thinking about. It occupies the same column in the periodic table as selenium. Under standard conditions of temperature and pressure this element is a clear, odorless gas. This element is one of the essential ingredients in the burning process.

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Last Answer : ANSWER: OXYGEN ATOMIC NUMBER = 8

The process of changing of one element into another is called (a) radioactive decay (b) transmutation of the elements (c) covalent bond formation (d) hybridization

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The Radioactive element present in Pitch Blende?

Description : The Radioactive element present in Pitch Blende?

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Strongest Radioactive element?

Description : Strongest Radioactive element?

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Which element in radioactive form is used for determining the, ageiof aitifacts: relics; bones etc of the past?

Description : Which element in radioactive form is used for determining the, ageiof aitifacts:relics; bones etc of the past?

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The element extracted from radioactive disintegration of radium?

Description : The element extracted from radioactive disintegration of radium?

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The element extracted from radioactive disintegration of radium?

Description : The element extracted from radioactive disintegration of radium?

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The half life of a radioactive element is 8-days. How long it take to reduce it from 10 mg to 5 mg? A. 4 days B. 12 days C. 16 days D. 8 days (Answer) E. None of these

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Which of the element of group 17 is radioactive? -Do You Know?

Description : Which of the element of group 17 is radioactive? -Do You Know?

Last Answer : answer:

From which part of the atom of the radioactive element is the radioactive ray emitted ?

Description : From which part of the atom of the radioactive element is the radioactive ray emitted ?

Last Answer : The radioactive ray is emitted from the nucleus of the atom of the radioactive element.

What is the half-life of a radioactive element ?

Description : What is the half-life of a radioactive element ?

Last Answer : Half-life is the amount of time during which half of the nucleus of an element is irradiated.

Who Discovered Artificial Radioactive Element ?

Last Answer : Discover the synthetic radioactive element (Julio Curie)

The activity of a radioactive element reduces to `(1//16)th` of its original value in 30 years. Find its half life?

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Initial amount of the radioactive element with half life 10 days is 16 g. What amount in gm of this element will remain after 40 days?

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In the disintegration of a radioactive element, `alpha` and `beta`-particles are evolved from the nucleus: `._(0)^(1)n to ._(1)^(1)H + ._(-1)^(0)e` +

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In the disintegration of a radioactive element, `alpha`- and `beta`-particles are evolved from the nucleus. `._(0)n^(1) rarr ._(1)H^(1) + ._(-1)e^(0)

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In the disintegration of a radioactive element, `alpha`- and `beta`-particles are evolved from the nucleus. `._(0)n^(1) rarr ._(1)H^(1) + ._(-1)e^(0)

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In the disintegration of a radioactive element, `alpha`- and `beta`-particles are evolved from the nucleus. `._(0)n^(1) rarr ._(1)H^(1) + ._(-1)e^(0)

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In the disintegration of a radioactive element, `alpha`- and `beta`-particles are evolved from the nucleus. `._(0)n^(1) rarr ._(1)H^(1) + ._(-1)e^(0)

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Assertion (A) : The average life of a radioactive element is infinity Reason (R ) : As a radioactive element disinegrates, more of it is formed in nat

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A radioactive substance (parent) decays to its daughter element . The age of radioactive substance (t) is related to the daughter (d)/parent (p) ratio

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A radioactive element is preset in VIII group of the periodic table. If it emits one `alpha`particle, the new position of the nuclide will be

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A radioactive element gets spilled over the floor of a room. Its half life period is 30 days. If its initial activity is ten times the permissible val

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A radioactive element A on disintegration gives two elements B and C. If B is helium and C is the element of atomic number 90 and atomic mass 234, the

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The rays are given off by a radioactive element from A)Nucleus B)Valence electrons C)All the orbits D)Outer orbit

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How does the composition of a rock containing a radioactive element change over time.?

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Which of the following is a radioactive element? (1) Cobalt (2) Uranium (3) Argon (4) Chromium

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The lightest radioactive element is - (1) deuterium (2) polonium (3) technetium (4) uranium

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Last Answer : (3) Technetium Explanation: Tritium is a radioactive isotope of hydrogen. It is the lightest radioactive element.

Which one of the following is not a radioactive element? (1) Uranium (2) Thorium (3) Radium (4) Cadmium

Description : Which one of the following is not a radioactive element? (1) Uranium (2) Thorium (3) Radium (4) Cadmium

Last Answer : (4) Cadmium Explanation: Radioactivity refers to the particles which are emitted from nuclei as a result of nuclear instability. Because the nucleus experiences the intense conflict between the two ... show radioactive properties while the fourth one does not show any kind of radioactive properties.

The radioactive element used in heart pacemakers is – (1) Uranium (2) Deuterium (3) Plutonium (4) Radium

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Last Answer : (1) Uranium Explanation: The actinides (or actinoids) are the chemical elements with atomic numbers between 90 and 109 inclusively. They occur between Groups 3 and 4 in Period 7 of the periodic table. ... scale, it is also used as a power source in smaller devices such as the heart pacemaker.

Which of the element of group 17 is radioactive?

Description : Which of the element of group 17 is radioactive?

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The atomic number of a radioactive element is not changed, when it emits __________ rays. (A) α (B) β (C) γ (D) α & β

Description : The atomic number of a radioactive element is not changed, when it emits __________ rays. (A) α (B) β (C) γ (D) α & β

Last Answer : (C) γ

75% of a radioactive element decays in 6 hours. Its half life period is __________ hours. (A) 3/4 (B) 1/6 (C) 3 (D) 4

Description : 75% of a radioactive element decays in 6 hours. Its half life period is __________ hours. (A) 3/4 (B) 1/6 (C) 3 (D) 4

Last Answer : (C) 3

Pick out the wrong statement. (A) α-particle emission from a radioactive element makes it electrically negative (B) β-particle emission from a radioactive element makes it electrically positive (C) A radioactive element having a half life period of 20 years will completely disintegrated in 40 years (D) The disintegration constant of a radioactive isotope is independent of pressure, temperature or concentration

Description : Pick out the wrong statement. (A) α-particle emission from a radioactive element makes it electrically negative (B) β-particle emission from a radioactive element makes it electrically ... ) The disintegration constant of a radioactive isotope is independent of pressure, temperature or concentration

Last Answer : (C) A radioactive element having a half life period of 20 years will completely disintegrated in 40 years

The half life period of a radioactive element depends on its (A) Temperature (B) Pressure (C) Amount (D) None of these

Description : The half life period of a radioactive element depends on its (A) Temperature (B) Pressure (C) Amount (D) None of these

Last Answer : (D) None of these

. The half life period of a radioactive element depends upon the (A) Temperature (B) Pressure (C) Amount of element present (D) None of these

Description : . The half life period of a radioactive element depends upon the (A) Temperature (B) Pressure (C) Amount of element present (D) None of these

Last Answer : (D) None of these

The half life period of a radioactive element is 100 days. After 400 days, one gm of the element will be reduced to __________ gm. (A) 1/4 (B) 1/8 (C) 1/2 (D) 1/16

Description : The half life period of a radioactive element is 100 days. After 400 days, one gm of the element will be reduced to __________ gm. (A) 1/4 (B) 1/8 (C) 1/2 (D) 1/16

Last Answer : (D) 1/16

The disintegration rate of a radioactive element (A) Progressively increases (B) Progressively decreases (C) Remains constant throughout (D) May increase or decrease depending on the material

Description : The disintegration rate of a radioactive element (A) Progressively increases (B) Progressively decreases (C) Remains constant throughout (D) May increase or decrease depending on the material

Last Answer : (B) Progressively decreases

The new nucleus formed after β-decay of a radioactive element has (A) Less atomic number (B) Less atomic weight (C) More atomic number (D) More atomic weight

Description : The new nucleus formed after β-decay of a radioactive element has (A) Less atomic number (B) Less atomic weight (C) More atomic number (D) More atomic weight

Last Answer : (A) Less atomic number

The time taken for a radioactive element to reduce to 50% of its original weight is __________ years, if its half life period is 12 years. (A) 24 (B) 18 (C) 6 (D) 36

Description : The time taken for a radioactive element to reduce to 50% of its original weight is __________ years, if its half life period is 12 years. (A) 24 (B) 18 (C) 6 (D) 36

Last Answer : (B) 18

If you start with 24 grams of a radioactive element with a half-life of one month, how many grams of the radioactive element will be left after 2 months? w) 1.5 grams x) 3 grams y) 6 grams z) 12 grams

Description : If you start with 24 grams of a radioactive element with a half-life of one month, how many grams of the radioactive element will be left after 2 months? w) 1.5 grams x) 3 grams y) 6 grams z) 12 grams

Last Answer : ANSWER: Y -- 6 GRAMS

Radon differs from other naturally radioactive elements in which one of the following ways. Is it because radon w) is extremely radioactive x) decays into the element radium y) is a noble gas z) is as chemically active as fluorine

Description : Radon differs from other naturally radioactive elements in which one of the following ways. Is it because radon w) is extremely radioactive x) decays into the element radium y) is a noble gas z) is as chemically active as fluorine

Last Answer : ANSWER: Y -- IS A NOBLE GAS