2. Stellar Formation and Evolution a. H +H →²¼H + b. 2H +H →32HE + c. 32He +32He → 42He + - -

Q: The element antimony (Sb) has an atomic mass of 121.76 amu. Two naturally occurring isotopes of…

A:

Q: 6.39 Why is Equation 6.9 meaningful only forsubmicroscopic particles, such as electrons and…

A: To find: Why is Equation 6.9 meaningful only for submicroscopic particles, such as electrons and…

Q: On a remote island in the Arctic Ocean, a scientist claims to have found a new element (Excitinium)…

A: Given: On a remote island in the Arctic Ocean, a scientist claims to have found a new element…

Q: 17. Which Violates Pauli's Exclusion Principle? 25 2p A. 1s 24 2p В. 1s 2s 2p C. 1s 2s 2p D.

A: Given options are :  Which violates Pauli's exclusion principle = ?

Q: What is the electron capacity of the nth energy level? What is the capacity of the fourth energy…

A: The electron capacity of the nth energy level and the capacity of the fourth energy level have to be…

Q: State the Pauli exclusion principle. Explain how it is usedto determine the number of electrons that…

A: An electron has four quantum numbers: principal quantum number (n), Azimuthal quantum number (l),…

Q: 11. The number of electrons in the highest energy level of 20Ca is ?

A: Given  Element  = Ca ( Calcium )  Number of electron in Highest Energy level = ?

Q: write the electronic configuration of born whose atomic number is 5 and mass number 11.

A: Given,  born whose atomic number is 5 and mass number 11.  Atomic symbol = B

Q: Which electron configuration represents a violation of the Pauli exclusion principle? 1s 2s 2p 1s 2s…

A: According to Pauli exclusion principle, " no two electrons can have same all four quantum numbers. "…

Q: - many emission lines are possible, considering only the four quan ls above? otons of the highest…

A: A) Total number of emission spectral line  Total lines  = n(n-1)/2   = 4 ×(4-1)/2   = 6

Q: where does the reactivity of an atom primarily arise from

A: Atoms are made up of neutrons, protons, and electrons. Neutrons are the non charged particles while…

Q: describe an atomic emission process ( as it gives rise to a portion of an emission spectrum)

A: The chemical compound emits electromagnetic radiations when transition occurs from high energy state…

Q: Atomic Structure Who Am I? Bohr's Model 8. 00 () 2017 Activities To Teach.com - Lpdated 2020 cards…

A: For the identification of atom . Count the number of protons and electrons in the atom.

Q: Which 'rule for filling' is being violated in the orbital diagram shown here? 28 2p 14 a. Aufbau b.…

A: Hund's rule: every orbital in a subshell is singly occupied with one electron before any one orbital…

Q: This ene., Jiagram shows the allowed energy levels of an electron in a certain atom. (Note: the SI…

A: The ground state of an electron is the minimum energy state that it can occupy.

Q: A container of volume 1 litter is filled with hydrogen atom at temperature 300 K. The number of…

A:

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

A:

Q: 2. The Main Energy Level is composed of P, d, and f: A.Pauli's Exclusion Principle B. Hund's Rule…

A: “Since you have asked multiple questions, we will solve the first question for you. If you  want any…

Q: 1. Write down the following rules, in your own words: a. Aufbau principle b. Pauli Exclusion…

A: Since your question has multiple parts, we will answer the first question for you. If you want…

Q: How did Max Planck explain the fact that metal will glow different colors when heated?

A: Max Planck has studied the emission of light by means of hot objects. He observed a heated metal…

Q: Explain the following A. Aufbau principle B. Hund's principle C. Pauli's Exclusion principle

A:

Q: The work function energy for a particular metal is 3.80 eV (electron volts) per electron ejected.…

A: Given:  Work function energy = 3.80 eV

Q: Calculate the energy difference ( Δ E) for the transition of n = 2 to n = 3 for 1.00 mol of…

A: The given transition is n=2 to n=3. It states that electron is moving from lower energy level to…

Q: Distinguish between two different types of shielding?

A: The electrons which are present in the last shell of an atom are named as valence electrons and…

Q: -21 . You can find the meaning of This energy diagram shows the allowed energy levels of an electron…

A: We have to answer questions related to emission spectra based on the graph.

Q: Photoelectron Spectrum of Neon www.APchemresources2014.weebly.com J. K. Howell A B 1000 800 600 400…

A: Photoelectron spectroscopy (PES) is useful to determine the relative energies of the electrons…

Q: When a metal is exposed to 4.78×10² nm blue radiation, it emits an electron with kinetic energy…

A:

Q: 6. In emission, a) an electron moves from an excited state to a lower energy state, and energy is…

A: An electron can move from one energy state to another by absorbing or releasing energy depending on…

Q: In addition to absorption of a photon, energy can be transferred to an atom by collision. Consider a…

A: Given :  Consider a hydrogen atom in its ground state. Incident on the atom are electrons having a…

Q: Part 1: Thin layers of potassium (Φ= 3.68 * 10^-19 J) and sodium (Φ= 4.41 * 10^-19 J) are exposed to…

A: Given: Φ i.e. work function of potassium, K = 3.68 × 10-19 J Φ of sodium, Na = 4.41 × 10-19 J. And…

Q: Explain The Born–Haber Cycle?

A: Born–Haber cycles are used primarily as a means of calculating lattice energy which cannot otherwise…

Q: The electronvolt (eV) is a common energy unit. A single decay of a plutonium (Pu, atomic number 94)…

A: The number of significant figures in the answer after multiplication or division is determined by…

Q: Waves are a transfer of O a O b energy water sun

A:

Q: Emission of light from an atom occurs when an electron drops from a higher level to a lower energy…

A: Electrons are distributed among the different energy levels within an atoms.

Q: K. Atomic Structure Who Am I? Bohr's Model T. 00 20 (s) 2 (c) 2017 Activities To Teach.com-Updoted…

A: Atomic number = Number of protons

Q: ew Walue Unit A Review 65 2 Complete the following written-response questions in the spaces…

A: Protons are positively charged and electrons are negatively charged.Neutrons have no charge.

Q: 31) What electron configuration represents the first excited state of phosphorus? 1s 2s? 2p 3s' 3p…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first only.

Q: -21 . You can find the meaning of This energy diagram shows the allowed energy levels of an electron…

A:

Q: If a student determined the frequency of a line to be 3.456x1014 s-1 and this is value gives a…

A: The solution is as follows:

Q: What type of sublevels (s,p,d,f) are present in n-2?

A: In atomic structure  sub levels depends on principal quantum number(n) Subleveles types  s p d f

Q: If Bohr ran 105 meters in 9.45 sec and Heisenberg ran 125 yards in 9.75 sec, who ran faster?

A: Given : Bohr travelled a distance = 105 m Time taken by Bohr = 9.45 s Heisenberg travelled a…

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.

Q: What are “core electrons”?(

A: To explain the core electrons.

Q: G-I Complete the blanks. Stellar Formation and Evolution.

A: In this question, we will evaluate nuclide ( in empty space ). How we can evaluate, you will see…

Q: true or false Ultraviolet radiation is harmful with no benefits

A: The ozone layer protects the earth from harmful ultraviolet radiation. Ozone molecule combines with…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.