2s 1s 1s 1s 1s (H) (He) (Li*) (Li) A C

Q: How far from the nucleus in angstroms (1 angstrom = 1 × 10–10 m) is the electron in a hydrogen atom…

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Q: When light with a wavelength of 186 nm strikes the surface of tin metal, electrons are ejected with…

A: Solving only first question in accordance with the guidelines. You can repost remaining question.…

Q: In an experiment in which the Kalines of various elements were determined, an element emits a Ka…

A: Using Mosley's law, we can identify any elements from their characteristics X-ray. This law is based…

Q: Which of the following types of electrons penetrates most toward the nucleus and therefore has the…

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Q: Which of the following quantum number sets are possible? Hint: there are two correct answers; select…

A: The set of numbers which describe the position and energy of the electron in an atom are called…

Q: If a spark promotes the electron in a hydrogen atom from Bohr orbit with n=3 to the orbit with n=6,…

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Q: X-rays have a wavelength small enough to image individual atoms, but are challenging to detect…

A: X-ray have a wavelength small enough to image individual atom but are challenging to detect because…

Q: Which of the following has the highest energy? A wave with a 300 nm wavelength A wave with a 500 nm…

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Q: How much energy is required to remove an electron from the second shell 1 ДЕ -(-2.178 х 1о1 J) 2 n.…

A: Ionization energy: It is the energy required to remove the electron from its outermost shell from…

Q: ₗAre the following quantum number combinations allowed? Ifnot, show two ways to correct them:(a)…

A: Given combinations,

Q: Which of the following contain partially filled p orbital? A) 6 X B) 13 X C) 26 X D) 15 X

A: P orbital has 3 sub shell , and in each sub shell it can accommodate 2 electrons with opposite…

Q: 7.125 How do ionization energies change with increasing atomic number (a) down a group of elements…

A: Ionisation energy (IE) : The ionisation energy is defined as the amount of energy to remove the most…

Q: Ends e na vV LIght If an electron drops from the n-9 to the n=1 level in three separate steps (9→4,…

A: When a electron drops from higher level to lower level, it emits photon corresponding of a photon.…

Q: If light has a frequency of 6 × 104 /s, what is its wavelength?

A: Given :- frequency (v) = 6 × 104 /s  To calculate :- wavelength (in m)

Q: Which of the following electrons indicated with an asterisk will be the lowest in energy? 2s 1s 1s…

A: The negatively charged electrons are attracted by the positive charge of the nucleus. As the number…

Q: The binding energy of electrons in a metal is 294 kJ/mol. If 8.92 x 1024 photons of light with a…

A: Binding energy is the amount of minimum energy required to eject electrons from the metal surface.…

Q: Which of the following elements contains the largest number of unpaired electrons? Group of answer…

A: We know that, each atomic orbital of an atom has the capacity to contain two electrons. The electron…

Q: Which of the following energy level changes for an electron is least energetic? A) 5 → 2 B) 4 → 2…

A: ∆E α 1n12- 1n22 we can observe more higher value of n, less the value of E.

Q: 20. A laser shines violet light with a frequency of 714 THz onto the metal in the previous question,…

A: The velocity (v) of the electron is calculated as shown below where m is the mass of an electron.

Q: When light with a wavelength of 186 nm strikes the surface of tin metal, electrons are ejected with…

A: Given :  Wavelength of light = 186 nm  Kinetic energy = 3.6 x 10-19 J

Q: How does the energy of a principal energy level depend on the value of n? Does a higher value of n…

A: There are four type of quantum numbers.They are (1) principle quantum number(n) :- it gives us idea…

Q: (Q101) Outside of the nucleus, the strong force: Decreases by a factor of two for each electron…

A: Outside of the nucleus the strong force is  virtually non-existent So only option b is correct…

Q: e considering the new element Jessium, J, atomic number 119 a che following questions about periodic…

A: Radioactive isotope are not stable. To get stabalize radioactive isotope emit radiation in the form…

Q: a) An electron in the H atom moves from an unknown energy level to n = 2. The energy released in…

A: QUESTION 3 a) part given: Hydrogen aatom moves from an unknown energy level to n=2 Energy released…

Q: The energy of the electron in the lowest level of the hydrogen atom (n=1) is -2.179×10-18 J.What is…

A: Given:Energy of 1st orbit (n=1) = -2.179×10-18 J.

Q: 60. Which one of the following provides evidence for the existence of atomic energy levels? A. The…

A: Evidence of existence of atomic energy levels depend Bohr model.

Q: An electron begins at energy level n = 8.  If a photon is released such that the magnitude of the…

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Q: A certain microwave oven produce microwave with x wavelength at 2.50 mm, if 20.0 moles of photons…

A: Given :- no.of moles of photons = 20.0 mol  Wavelength of microwave = 2.50 mm  To calculate :-…

Q: Arrange the following set of atoms in order of decreasing atomic size: Ge, Pb, Sn Which atom has the…

A: Along the period atomic size decreases, since the number of shells increases and also there is…

Q: In a hydrogen atom, an electron loses energy from n = 5 to n = 2, a process that leads to some kind…

A: The energy of radiation will be given by the energy difference of electron in n = 5 and n = 2 Since…

Q: Place the following elements in order of increasing size   Be, Se, C, O

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Q: Calculate the kinetic energy in J of an electron moving at 6.00 × 106 m/s. The mass of an electron…

A: Given,  Mass of electron= m= 9.11 × 10-28 g. Speed of electron = v= 6.00 × 106 m/s. We need to…

Q: * 3. A certain element ends its electron configuration on the p sublevel. What is the shape of its…

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Q: Red visible light has a wavelength of 6.5 x 10^-7 m. What is the frequency in s^-1

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Q: Which one of the following particle has the smallest size? Select an answer and submit. For keyboard…

A: Which one of the following has smallest size :  Na+, Mg2+, Ne, F- , O2- .

Q: The energy of the electron in the lowest level of the hydrogen atom (n=1) is -2.179×10-18 J. What is…

A: The energy of electron of the hydrogen atom in the nth level is given by: If E1 is the energy…

Q: Which of the subshell designations are possible and which are impossible? Possible Impossible Answer…

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Q: Arrange the following groups of atoms in order of increasing size. (Enter multiple answers as a…

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Q: e. Has a total of 32 electrons with ms=½

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Q: 3. A radio wave has a frequency of 3.8 x 1010 Hz. What is the energy photon of this radiation? 4. An…

A:

Q: Be sure to answer all parts.   Arrange the following set of atoms in order of decreasing atomic…

A: We have to arrange atoms in size order.

Q: An atom has an electron configuration of 1s22s22p6. Which of the following are possible quantum…

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Q: What is the principal quantum number or (N) of:   a. Magnesium b. Zinc c. Chlorine d. Sodium…

A: Principal quantum number denotes the number of shell in which an element  is present.  If principal…

Q: Which one of the following particle has the smallest size? Na* B Mg2+ C Ne D F E 02-

A: Given species: Na+ Mg2+ Ne F- O2- We have to find the particle that has the smallest size.

Q: 4. The diagram shows the lowest two energy levels of an atom. B 2.4 x 10-19 J A - Use the constants…

A: Energy is inversely proportional to wavelength.