Which best describes Internal energy? Velocity of the atom Spin of the atom All of the above Vibration of the atom

Q: Go through the first 20 elements in the chart.  Note and record which orbital contains the…

A: Atomic number Name of the atom Electronic configuration 1 Hydrogen 1s1 2 Helium…

Q: ') The Bohr model of an atom explains the physical behavior of an atom through three hypotheses.…

A:

Q: Describe at the atomic level the process that must occur for a line of color to appear in an…

A: the atomic level the process that must occur for a line of color to appear in an emission spectrum.…

Q: spectra can be broadly classified into two categories. They are: a.) Atomic and molecular spectra…

A: Required : Classification of spectra :

Q: Explain Bohr’s model of atom.

A: Bohr's Model: Bohr’s model describes the hydrogen atom with a small +ve nucleus and a single…

Q: Element Sodium Potassium Strontium Calcium Magnesium Strontium Mercury Arsenic Color

A:

Q: Bohr magneton is defined as magnetic moment of an electron orbital motion magnetic moment of an…

A: Bohr magneton

Q: The first scientist who was able to separate two isotopes of neon was O Henry Noseley Marie Curie…

A:

Q: Need help with a design on the carbon separator. The separator that is detailed here works for…

A: The diagram of the carbon separator is as follows,

Q: An alpha particle is: 'n Alfa-deeltjie is: OA. a helium atom with two electrons removed / 'n…

A: 19) An alpha particle is produced from a radioactive nuclei during a radioactive decay. Two protons…

Q: Choose the BEST answer to the following. The neutrons in an atom are normally found (a) inside the…

A: Answer: ai,e  inside the nucleus.

Q: State what most a particles being straight on suggests about the structure of the atoms in the metal

A:

Q: Both statements are true.  Both statements are false.  First statement is true and second is false…

A: Answer:- Both statements are true.    Statements 1. To maintain electric neutrality, an atom must…

Q: Number of Electrons Atomic Number Element name Element Symbol

A: Done

Q: Where is the electron in an atom

A: An atom is made of electrons protons, and neutrons. Protons and neutrons are in the nucleus of the…

Q: The mass of an atom is measured in atomic mass units. One atomic mass unit is equal to 1.66x10-27…

A: The masses of atoms and subatomic particles are very small.

Q: Describe the principle of the experiment which established the nuclear model of an atom explaining…

A: SOlution: to describe the experiment which has establisehd the nuclear model of an atom.

Q: The bright- line spectrum produced by the excited atoms of an elementcontained wavelengths that a.…

A: An element produce bright and dark lines with the same wavelength For example hydrogen has three…

Q: The value of atomic mass unit is equivalent to 9.36 x 10-27 kg 1.66 x 10-32 kg 1.66 x 10-24 ka 1.66…

A:

Q: The Bohr model of the atom was used before the advent of quantum mechanics. Name three shortcomings…

A: The shortcomings of Bohr model are: 1. The model could not account for the spectra of atoms more…

Q: State TWO principles of a quantum mechanical model.

A: Quantum mechanical model of the atom was proposed by Erwin Schrödinger. This is a model of the atom…

Q: Below 0.3 K the slope of the 3He solid-liquid phase boundary is negative Use the third law of…

A: Using the clausius-clapeyron equation,we can find slope of boundary line…

Q: 17. The atomic energy level diagram accounts for A. the emission spectra of an atom B. the…

A: Energy level diagram

Q: Which of the following elements are NOT gases at room temperature and atmospheric pressure? 1. F 2.…

A: Which of the following elements are NOT gases at room temperature and atmospheric pressure? Option…

Q: Argon and potassium are neighbors in the periodic table but have very different sizes—a potassium…

A: The ionization energy is the minimum energy required to remove the electrons from the outermost…

Q: One cubic meter of atomic hydrogen at 0°C at atmospheric pressure contains approximately 2.70 x 1025…

A: Given that: No=2.70×1025 atoms∆E=10.2 eV=10.2×1.6×10-19 J

Q: What would the atom below do to become an ion?

A: When an atom accept eletron or reject electron then the atom become an ion. We know the the number…

Q: (c) identity of the ion, assuming it's an element (Use only the masses of elements in their most…

A: Given: Magnitude of electric field, E = 6974 V/m Magnitude of magnetic field, B = 0.0856 T The…

Q: atoms can occupy only certain discrete energy levels. Consider a gas at a temperature of 2 500 K…

A: The ratio of the number atoms in the higher energy level to the lower energy level can be given as

Q: Do atoms ever actually touch each other?

A: The  atom consists of three particles: protons electrons neutrons In the nucleus of atom there are…

Q: According to the Bohr model, what may happen when an atom gains?

A: Energy of electron changes when an atom gains or lose energy.If atom gains energy it jump from…

Q: Calculations made in Kinetic Molecular Theory allowed to suggest that the collisions between atoms…

A: Answer:- Pressure Calculation made in kinetic molecular theory allowed suggest that the collision…

Q: RECTANGU LAR BLOCK Of CARBON IS SHOWN. L:3cm a=2mm b=2mm V= lOV

A: The length of the block L=3 cm=0.03 m The area of cross section of the block…

Q: Calculate the mass of an atom of (a) helium, (b) iron, and (c) lead. Give your answers in kilograms.…

A: The atomic mass unit,

Q: Cite evidence that the idea of opposites as components of a wholeness preceded Bohr’s principle of…

A:

Q: An atom fits in the nanoscale. It is more or less _________. *

A: The nanoscale is in the range of approximately 1 to 100 nm. The size of an atom is very small. A…

Q: Which of the following would affect atomic spectra? A 16 The element involved The atom's state of…

A: Spectra are produced when the exictied electrons are drop from the higher state to the ground state.…

Q: How many and what type of motion degrees of freedom does an atom have in two dimensions? (time…

A: Required :: Number of degrees of motion.

Q: 20 20 a d 42 20 3Ω h

A:

Q: Using the periodic table, Terry draws a model of a helium atom and a hydrogen atom. Match the number…

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

Q: According to the Bohr model, what may happen when an atom gains energy?

A: Bohr model: Bohr model explains the nuclear model of an atom. This model analyzes the nuclear model…

Q: The value of ( xk). (kxi) is: O √3 O-1 00 O 3 O +1

A:

Q: Hydrogen

A: Given : Spectrum of hydrogen

Q: The radium of the Helium atom is about 0..55 AU. Calculate the polarisability of Helium and its…

A: Given data: Radius of Helium atom is R = 0.55 AU. Number of atoms is N=2.7×1025/m3.

Q: Elements chemically combine to form 1. atoms. O 2. other elements. 3. isotopes. 4. mixtures. 5.…

A: Elements chemically combine to form compounds.

The Bohr model

Students often get confused between Rutherford’s model and Bohr model of an atom. They interpret the postulates of both these models to be the same, which is incorrect. Rutherford’s model differs from Bohr’s model in the following ways: