What are the solutions to 9x-4=0?

Q: Which of the following is an acceptable atomic model for a neutral atom of carbon?

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Q: Which of water, iron, ammonia, chromium, radon, and silicon are chemical compounds as opposed to…

A: We have to write the chemical compounds as opposed to elements

Q: 8. Part 1: Label the parts of this atom (nucleus, protons, electrons, neutrons) Part 2: Answer…

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Q: In each case, identify the element in question.(a) The mass number of an atom is 234, and theatom…

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Q: A neutral atom of the element potassium (K) has A 19 protons. B. 20 neutrons. C. 39 electrons. 58…

A: No.of protons in an atom is determined by atomic number of that atom .

Q: Determine the number of atoms in a block of pure Gallium measuring 3 inch x 0.1 feet x 0.1 yards.…

A: Given information :Volume of Gallium V = (3in)x(0.1ft)x(0.1yards)Atomic weight m = 69.723…

Q: Polonium, the Period 6 member of Group 6A(16), is a rare radioactive metal that is the only element…

A: The density of the unit cell is given by,

Q: What is the atomic number for the element platinum? 78 47 195 56

A: To determine Atomic number of element platinum

Q: Choose the best answer to the following: How many electrons are there in the third shell of sodium,…

A: Answer:  b

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

A: Bohr magneton

Q: Fill in the nine gaps in this table. Element symbol     Mg     Protons   20   Neutrons   20…

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Q: The continuity equation satisfied by u=x-4y,v=y-4x u = 4xy+y?, v= 6xy+ 3y . u= 3x^2-2y^2, v=-6xy.II

A:

Q: What is the number of protons, neutrons, and electrons for element has; atomic number 9, mass number…

A: The given problem is based on atomic physic, To solve the given problem we will define the mass…

Q: The simplest type of atom to exist is the . atom a. охудen b. hydrogen O C. helium d. boron

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Q: Refer to the table below; Calculate the percentage difference of the mass of neutron from proton.…

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Q: What observable characteristic is common among all the solutions? What substance provides this…

A: Given : What are the common observable characteristic of solution.

Q: 10-16 nm3 = ______km3. A. 10-20 B. 1020 C. 10-43 D. are noble…

A: Given data: 10-16 nm3 Required: The value in km3

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: What are equivalent fractions for 3/5?

A: Given:  3/ 5

Q: Which of the following are pure elements: H2, H2O, He, Na, NaCl, H24, U?

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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…

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Q: A restaurant put up some neon lamps. “Neon” lamps are not just neon. They have various gases that…

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Q: 3) Pore 2. 1.5V 4.64 ka.

A: V1 = 1.4 volts V2 = 1.5 volts The currents in different branches of the circuit are I1,I2,I3

Q: Select one or more: a. The model suggested presence of electrons orbiting the heavy nucleus. b. The…

A: Bohr model suggested presence of electrons orbiting the heavy nucleus in that orbit which is…

Q: Molybdenum has an atomic radius of 0.145 nm. The volume of its cubic unit cell is 0.0375 nm3 . What…

A: radius (r) = 0.145 nm Volume = 0.0375 nm3

Q: What determines the identity of the element? Atomic MASS (# of protons and neutrons) Atomic NUMBER…

A: What determines the identity of the element ?

Q: Identify all true statements from the following. O The nucleus of an atom contains only neutrons. O…

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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: how much charge is present in a container havinf 1 atom of hellium

A: SOlution:

Q: 2 sin cos is equivalent to: 27 Cos 27 sin sin 10 Cos 10

A:

Q: If a patient ingests a small quantity of l'31 for treatment of hyperthyroidism. The lifetime of 131…

A: The given data are: t12=8.1 dayst=16.2 days Here, t12 denotes the half-life and t denotes the time.

Q: 4. A neutral atom always has A) More neutrons than protons. B) More protons than electrons. C) The…

A: Neutral atoms are the atoms which have no charge neither negative nor positive.

Q: I am stuck on these calculations. Thank you.

A: (a) using equation (1) above equation can be solved.

Q: Four marbles are made of different metals. Each marble has the same mass, but a different volume.…

A: Scenario - Four metals have same masses but different densities, hence has different volumes. Given…

Q: How can a charged atom (an ion) attract a neutral atom?

A: Given: A charged atom and a neutral atom

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: 20 20 a d 42 20 3Ω h

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Q: Chromium is BCC crystal structure and has atomic weight of 52.0 g/mol and density of 7.19…

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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: The value of A in the element symbol below determines the isotope of the atom.

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Q: Tell how many protons, electrons and neutrons there are in each of the ff. Atoms: a. 12C d. 206Pb b.…

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Q: A 5.50 L sample of neon at 6.67 atm is added to a 10.0 L cylinder that contains argon. If the…

A: P1V1=P2V26.67 atm5.50 L=P210.0 LP2=3.67 atmThe pressure of the neon gas as it is along inside the…

Q: What electrostatic force acts between two protons in a nucleus if they are 4x10-15 m apart? Select…

A: Charge: q = charge on proton = +1.6 x 10-19 C Distance between two protons: r = 4 x 10-15 m

Q: If Å = 3î – 29 + 4R and B = -5î + 2ĵ – R, then what is (A + B)•(Ã × )?

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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.

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: