Chemistry-
General
Easy
Question
(Energy of electron in nth orbit of hydrogen like species having atomic
I) Ground state:
Lowest energy state of any atom or ion is called ground state of the atom It is n = 1.
II) Excited State :
States of atom other than the ground state are called excited states:
III) Ionisation energy (E):
Minimum energy required to move an electron from ground state to n = is called ionisation energy of the atom or ion.
i) Excitation Energy:
Energy required to move an electron from ground state of the atom to any other state of the atom is called
excitation energy of that state.
Excitation energy of 2ndstate = excitation energy of 1stexcited state = 1stexcitation energy = E2 ñ E1
ii) Binding EnergyëoríSeperationEnergy:
Energy required to move an electron from any state to n = is called binding energy of that state. Binding energy of ground state = E. of atom or on.
The third excitation energy of a hydrogen like species is 204 eV.
What is the binding energy of e from second state in the given species?
- 13.6 eV
- 54.4eV
- 122.2eV
- 17eV
The correct answer is: 17eV
Related Questions to study
chemistry-
(Energy of electron in nth orbit of hydrogen like species having atomic
I) Ground state:
Lowest energy state of any atom or ion is called ground state of the atom It is n = 1.
II) Excited State :
States of atom other than the ground state are called excited states:
III) Ionisation energy (E):
Minimum energy required to move an electron from ground state to n = is called ionisation energy of the atom or ion.
i) Excitation Energy:
Energy required to move an electron from ground state of the atom to any other state of the atom is called
excitation energy of that state.
Excitation energy of 2ndstate = excitation energy of 1stexcited state = 1stexcitation energy = E2 ñ E1
ii) Binding EnergyëoríSeperationEnergy:
Energy required to move an electron from any state to n = is called binding energy of that state. Binding energy of ground state = E. of atom or on.
The third excitation energy of a hydrogen like species is 204 eV.
Identify the hydrogen likespecies.
(Energy of electron in nth orbit of hydrogen like species having atomic
I) Ground state:
Lowest energy state of any atom or ion is called ground state of the atom It is n = 1.
II) Excited State :
States of atom other than the ground state are called excited states:
III) Ionisation energy (E):
Minimum energy required to move an electron from ground state to n = is called ionisation energy of the atom or ion.
i) Excitation Energy:
Energy required to move an electron from ground state of the atom to any other state of the atom is called
excitation energy of that state.
Excitation energy of 2ndstate = excitation energy of 1stexcited state = 1stexcitation energy = E2 ñ E1
ii) Binding EnergyëoríSeperationEnergy:
Energy required to move an electron from any state to n = is called binding energy of that state. Binding energy of ground state = E. of atom or on.
The third excitation energy of a hydrogen like species is 204 eV.
Identify the hydrogen likespecies.
chemistry-General
chemistry-
Consider the following first order decomposition and the accompanying concentration ñ time plot: 
(log 2 = 0.3, log 5 =0.7)
Consider the following first order decomposition and the accompanying concentration ñ time plot: (log 2 = 0.3, log 5 =0.7)
chemistry-General
chemistry-
The angular momentum of an electron in a Bohr’s orbit of H-atom is 4.2178 × 10-34kgm2/sec. Calculate the wavelength of the spectral line emitted when electrons falls from this level to next lowerlevel.
The angular momentum of an electron in a Bohr’s orbit of H-atom is 4.2178 × 10-34kgm2/sec. Calculate the wavelength of the spectral line emitted when electrons falls from this level to next lowerlevel.
chemistry-General
chemistry-
The half-life of 99Tc is 6.0 h. The total residual activity in a patient after receiving an injection containing 99Tc must not be more than 0.01 Ci, after 36.0 hours. What is the maximum activity (in Ci) that the sample injected can have?
The half-life of 99Tc is 6.0 h. The total residual activity in a patient after receiving an injection containing 99Tc must not be more than 0.01 Ci, after 36.0 hours. What is the maximum activity (in Ci) that the sample injected can have?
chemistry-General
chemistry-
The reaction
Product, is zero order reaction while the reaction B Product, is first order reaction. For what initial concentration of A are the half lives of the two reactions equal ?
The reaction Product, is zero order reaction while the reaction B Product, is first order reaction. For what initial concentration of A are the half lives of the two reactions equal ?
chemistry-General
chemistry-
The time of decay for thermonuclear reaction is given by t = 5 × t1/2. The relation between mean life T and time of decay t is given by:
The time of decay for thermonuclear reaction is given by t = 5 × t1/2. The relation between mean life T and time of decay t is given by:
chemistry-General
chemistry-
Thecompoundshowsbelowinthediagram,ontreatmentwithacidcatalystisomerizesandequilibriumis established among thestereoisomers.
The equilibrium mixture contains all the three stereoisomers of this compound. Specific rotation of pure dextro isomer is +62° while the specific rotation of the equilibrium mixture is + 22°. Also the equilibrium mixture contains 20% of the meso isomers. Answer the following three qeustions based on the above information.
Composition of equilibrium mixture is:
Thecompoundshowsbelowinthediagram,ontreatmentwithacidcatalystisomerizesandequilibriumis established among thestereoisomers.
The equilibrium mixture contains all the three stereoisomers of this compound. Specific rotation of pure dextro isomer is +62° while the specific rotation of the equilibrium mixture is + 22°. Also the equilibrium mixture contains 20% of the meso isomers. Answer the following three qeustions based on the above information.
Composition of equilibrium mixture is:
chemistry-General
chemistry-
Thecompoundshowsbelowinthediagram,ontreatmentwithacidcatalystisomerizesandequilibriumis established among thestereoisomers.
The equilibrium mixture contains all the three stereoisomers of this compound. Specific rotation of pure dextro isomer is +62° while the specific rotation of the equilibrium mixture is + 22°. Also the equilibrium mixture contains 20% of the meso isomers. Answer the following three qeustions based on the above information.
Thepercentageofracemicmixturepresentintheequilibriummixtureis:
Thecompoundshowsbelowinthediagram,ontreatmentwithacidcatalystisomerizesandequilibriumis established among thestereoisomers.
The equilibrium mixture contains all the three stereoisomers of this compound. Specific rotation of pure dextro isomer is +62° while the specific rotation of the equilibrium mixture is + 22°. Also the equilibrium mixture contains 20% of the meso isomers. Answer the following three qeustions based on the above information.
Thepercentageofracemicmixturepresentintheequilibriummixtureis:
chemistry-General
chemistry-
Thecompoundshowsbelowinthediagram,ontreatmentwithacidcatalystisomerizesandequilibriumis established among the stereoisomers.
The equilibrium mixture contains all the three stereoisomers of this compound. Specific rotation of pure dextro isomer is +62° while the specific rotation of the equilibrium mixture is + 22°. Also the equilibrium mixture contains 20% of the meso isomers. Answer the following three qeustions based on the above information.
The percentage purity of the equilibrium mixture is:
Thecompoundshowsbelowinthediagram,ontreatmentwithacidcatalystisomerizesandequilibriumis established among the stereoisomers.
The equilibrium mixture contains all the three stereoisomers of this compound. Specific rotation of pure dextro isomer is +62° while the specific rotation of the equilibrium mixture is + 22°. Also the equilibrium mixture contains 20% of the meso isomers. Answer the following three qeustions based on the above information.
The percentage purity of the equilibrium mixture is:
chemistry-General
chemistry-
Statement-1 : A is optically active & B is optically inactive.
Statement-2 : A has centre of symmetry.
Statement-1 : A is optically active & B is optically inactive.
Statement-2 : A has centre of symmetry.
chemistry-General
chemistry-
Choose the correct option/s according to the given compound
Choose the correct option/s according to the given compound
chemistry-General
chemistry-
Select the correct statement(s) about the following reaction.
Select the correct statement(s) about the following reaction.
chemistry-General
chemistry-
Itsbasicstrengthis101morethan1,1-dimethyIaminonapthalene. Reason for high basic strength is:
Itsbasicstrengthis101morethan1,1-dimethyIaminonapthalene. Reason for high basic strength is:
chemistry-General
maths-
The number of positive integers satisfying the inequality 
is
The number of positive integers satisfying the inequality is
maths-General
maths-
equals to
equals to
maths-General
