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

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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The rays are given off by a radioactive element from A)Nucleus B)Valence electrons C)All the orbits ... electrons C. all the orbits D. outer orbit
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Beta rays emitted by a radioactive material are – (1) The electrons orbiting around the nucleus (2) Charged particles emitted by nucleus (3) Neutral particles (4) Electromagnetic radiations

Description : Beta rays emitted by a radioactive material are – (1) The electrons orbiting around the nucleus (2) Charged particles emitted by nucleus (3) Neutral particles (4) Electromagnetic radiations

Last Answer : (2) Charged particles emitted by nucleus Explanation: A beta ray is a high-energy, highspeed electron (negatively charged) or positron (positively charged) emitted in the radioactive decay of an atomic nucleus, such as a potassium40 nucleus, in the process of beta decay.

Beta rays emitted by a radioactive material are (1) The electrons orbiting around the nucleus (2) Charged particles emitted by nucleus (3) Neutral particles (4) Electromagnetic radiations

Description : Beta rays emitted by a radioactive material are (1) The electrons orbiting around the nucleus (2) Charged particles emitted by nucleus (3) Neutral particles (4) Electromagnetic radiations

Last Answer : Charged particles emitted by nucleus

The idea that electrons revolved in orbits around the nucleus of an atom without radiating energy away from the atom was postulated by: w) Thompson x) Bohr y) Rutherford z) Einstein

Description : The idea that electrons revolved in orbits around the nucleus of an atom without radiating energy away from the atom was postulated by: w) Thompson x) Bohr y) Rutherford z) Einstein

Last Answer : ANSWER: X -- BOHR

atoms with low ionization energy give up their outer valence electrons with ease?

Description : atoms with low ionization energy give up their outer valence electrons with ease?

Last Answer : trueapex

The cause of periodicity of properties (a) Increasing atomic radius (b) Increasing atomic weights (c) Number of electrons in the valency orbit (d) The recurrence of similar outer electronic configuration

Description : The cause of periodicity of properties (a) Increasing atomic radius (b) Increasing atomic weights (c) Number of electrons in the valency orbit (d) The recurrence of similar outer electronic configuration

Last Answer : Ans:(d)

Electrons in the outer orbit are called:

Description : Electrons in the outer orbit are called: A. nuclei B. valences C. waves D. shells

Last Answer : Electrons in the outer orbit are called: valences

The number of electrons in the outer most orbit of carbon atom is?

Description : The number of electrons in the outer most orbit of carbon atom is?

Last Answer : The number of electrons in the outer most orbit of carbon atom is 4.

How are electrons held in an orbit around the nucleus?

Description : How are electrons held in an orbit around the nucleus?

Last Answer : While it is useful to visualize an Electron orbiting an atomicnucleus like a moon orbiting a planet.It is more realistic to think of the Electron as a standing wave(with a fixed number of ... atomic nucleus(the Protons) there must be a balancing negative charge (theElectrons) present round the atom.

The orbit followed by a moving electrons around the nucleus of an atom?

Description : The orbit followed by a moving electrons around the nucleus of an atom?

Last Answer : Shell

Assertion : In a radioactive disintegration, an electron is emitted by the nucleus. Reason : Electrons are always present inside the nucleus.

Description : Assertion : In a radioactive disintegration, an electron is emitted by the nucleus. Reason : Electrons are always present inside the nucleus.

Last Answer : Assertion : In a radioactive disintegration, an electron is emitted by the nucleus. Reason : Electrons are ... both (A) and (R ) are incorrect.

Pick out the wrong statement. (A) The disintegration rate of a radioactive substance cannot be increased by heating it (B) Electrons have negligible mass and unit negative change (C) Deuterium atom has one proton and two neutrons in its nucleus (D) Cadmium is capable of absorbing neutrons

Description : Pick out the wrong statement. (A) The disintegration rate of a radioactive substance cannot be increased by heating it (B) Electrons have negligible mass and unit negative change (C) Deuterium atom has one proton and two neutrons in its nucleus (D) Cadmium is capable of absorbing neutrons

Last Answer : (C) Deuterium atom has one proton and two neutrons in its nucleus

How many valence electrons are in the element fluorine and do the same for chlorine and bromine?

Description : How many valence electrons are in the element fluorine and do the same for chlorine and bromine?

Last Answer : The number of valence electrons is seven.

What element has the same valence electrons as indium?

Description : What element has the same valence electrons as indium?

Last Answer : No other element in its ground state has the same valence electron configuration as indium.Other elements in group 13 have similar ns2np1 outer shell configurations:-Boron B, [He] 2s2 2p1Aluminium, Al, [Ne] 3s2 ... [Ar] 3d10, 4s2 4p1Indium In [Kr] 4d10 5s2 5p1Thallium Tl [Xe] 4f14, 5d10, 6s2 6p1

What element has the same valence electrons as indium?

Description : What element has the same valence electrons as indium?

Last Answer : No other element in its ground state has the same valence electron configuration as indium.Other elements in group 13 have similar ns2np1 outer shell configurations:-Boron B, [He] 2s2 2p1Aluminium, Al, [Ne] 3s2 ... [Ar] 3d10, 4s2 4p1Indium In [Kr] 4d10 5s2 5p1Thallium Tl [Xe] 4f14, 5d10, 6s2 6p1

From the elements: Cl, Br, F, O, Al, C, Li, Cs and Xe; choose the following: (a) The element with highest negative electron gain enthalpy. (b) The element with lowest ionization enthalpy. (c) The element with smallest ionic radius. (d) The element with six electrons in the valence shell. (e) The element which is a liquid at room temperature. (f)The element which belongs to zero group. (g) The elements which forms largest number of compounds.

Description : From the elements: Cl, Br, F, O, Al, C, Li, Cs and Xe; choose the following: (a) The element with highest negative electron gain enthalpy. (b) The element with lowest ionization enthalpy. ( ... . (f)The element which belongs to zero group. (g) The elements which forms largest number of compounds.

Last Answer : Ans. (a). The element chlorine (Cl) has the highest negative electron gain enthalpy. (b). The element cesium (Cs) has lowest ionization enthalpy. (c). The element fluorine F has lowest atomic radius. (d ... zero group (or group 18). (g). The element carbon (C) forms the largest number of compounds.

How many valence electrons does an atom of an element with an atomic number of twelve have?

Description : How many valence electrons does an atom of an element with an atomic number of twelve have?

Last Answer : ANSWER: TWO

An element used in semiconductors whose atoms have three valence electrons is

Last Answer : An element used in semiconductors whose atoms have three valence electrons is An acceptor.

_____ is an element used in semiconductors whose atoms have three valence electrons.

Last Answer : An acceptor is an element used in semiconductors whose atoms have three valence electrons.

What happens to the attraction between the outer electrons and nucleus?

Description : What happens to the attraction between the outer electrons and nucleus?

Last Answer : Feel Free to Answer

(3) the number of electrons orbiting around the nucleus Explanation: The chemical behavior of an atom is determined by the number of electrons on its outer shell. As for the chemical bonding properties of the atom, the electron configuration determines how it will bond, with what it will bond, and in what ratio atoms will bond to form the 20,000,000 different substances on Earth.

Description : (3) the number of electrons orbiting around the nucleus Explanation: The chemical behavior of an atom is determined by the number of electrons on its outer shell. As for the chemical bonding properties of ... , and in what ratio atoms will bond to form the 20,000,000 different substances on Earth.

Last Answer : Methyl phenyl ether can be obtained by reacting - (1) phenolate ions and methyl iodide (2) methoxide ions and bromobenzene (3) methanol and phenol (4) bromobenzene and methyl bromide

A satellite orbits the earth 200 km above the surface. What speed, in m/s, is necessary for a circular orbit? The radius of the earth is 6400 km and g = 9.2 m/s2 a.7200 b.6600 c.7800 d.6000 e.107 dynes

Description : A satellite orbits the earth 200 km above the surface. What speed, in m/s, is necessary for a circular orbit? The radius of the earth is 6400 km and g = 9.2 m/s2 a.7200 b.6600 c.7800 d.6000 e.107 dynes

Last Answer : c. 7800

A satellite of mass m orbits the earth in an elliptical orbit having aphelion distance `r_(a)` and perihelion distance `r_(p)`. The period of the orbi

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About how long does it take for the moon to orbit the Earth? a) 1 day b) 1 year c) 1 month d) It doesn’t, the Earth orbits the moon

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Low-Earth-orbit (LEO) satellites have _____ orbits.

Description : Low-Earth-orbit (LEO) satellites have _____ orbits.

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Pick out the wrong statement. (A) The ratio of the density of the 'nucleus' to that of the 'atom' is 10 12 (B) α-particle is identical with a doubly charged helium ion (C) The mass of deuterium atom is half that of helium atom (D) Gamma rays are high energy electrons

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Last Answer : (D) Gamma rays are high energy electrons

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

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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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Last Answer : In the disintegration of a radioactive element, `alpha`- and `beta`-particles are evolved from the ... C. decreases by 2 unit D. remains unaffected

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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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

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A single electron orbits around a stationary nucleus of charge `+Ze`, where Z is a constant and e is the electronic charge. It requires `47.2 eV` to e

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What are the orbits that electrons can occupy called?

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Last Answer : They are called "sub-shells".

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What is the number of valence of electrons of strontium?

Description : What is the number of valence of electrons of strontium?

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