QI: How the Van Der Waals bonds arise between atoms?

Q: iamond and lead of pencil are composed by carbon atom. however their electrical properties is…

A: Given the diamond and lead of pencil both composed of carbon atoms.

Q: 1.3 Show that Reynold's number Re is a non-dimensional group. What is the significance of this…

A: Answer  The Reynolds number is the most common dimensionless parameter in fluid mechanics it is…

Q: O 6 L O 7L 8L 9 L O 10 L О 12L O 14 L О 16L O none of the above

A:

Q: Describe the atomic substructures of matter and their role.

A: All the stuff is composed up of matter and matter itself has small units called an atom.

Q: sulfur -> silver sulfide Ag Ag Ag Ag Ag Ag Ag Ag Ag Ag Ag Ag Ag SH Ag How many of each atom are in…

A:

Q: Which element is needed and absorbed normally by your body when you are breathing?

A: Oxygen is brought into the lungs by breathing, where it is transported by red blood cells to the…

Q: Define valence band.

A: Valence band is the range of allowed energy values that are the highest energies an electron can…

Q: To become a positive ion, does an atom lose or gain an electron?

A: Step 1Atoms consists of neutrons, protons and electrons. Out of these, neutrons are neutral…

Q: How about an oxygen molecule?

A:

Q: What is the net charge (in C) of a single O2- ion?

A: Given data The given ion is O2-   From the given charge, the number of extra electrons is, n=2 The…

Q: Do you find the idea that you are made of recycled atoms disturbing? Why or why not?

A: We are made of atoms that were formed on other starts and distributed across the universe.

Q: If cose = , then tane : 13 a. 13 О. 12 O b. 12 13 d. 13

A: solution as

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

A: Answer:  b

Q: Why do you think silicon is used in electronic components?

A: Silicon is used for electronic device's because it is and element with very special properties. One…

Q: What is Hydrogen Bonding? Explain with an example?

A:

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

A:

Q: What causes dust particles and tiny grains of soot to move with Brownian motion?

A: Dust particles and tiny grains of soot move with Brownian motion. The Brownian movement is the…

Q: True/False and why? A gram of Cesium has more atoms than a gram of Hydrogen.

A: Number of atoms in 1 gram of Cesium is,

Q: Use Coulomb’s law to explain why a salt crystal suchas NaCl remains intact in benzene (C6H6) but…

A: According to Coulomb's law, unlike charges attract while like charges repel.

Q: Graphite has hexagonal crystal lattice which contains four atoms per unit cell at positions of (0 0…

A: GIVEN: The four positions are ( 0 0 0), (1/3 2/3 0), (0 0 1/2) and (2/3 1/3 1/2).

Q: 214Po84 --> __________  +  4He2

A: Reaction :         214Po84= 210Pb82+4He2

Q: Who first explained Brownian motion and made a convincing case for the existence of atoms?

A:

Q: Name the radiation which can be detected by a solution of silver chloride?

A:

Q: Hydrogen has been used as a rocket fuel. Would you consider it a cleanerfuel than CNG? Why or why…

A:

Q: Iron has an atomic number Z=26, a relative atomic m iron, assuming that each atom contributes two…

A:

Q: what is the physical significance of half adder?

A: Phil and potential

Q: Why led bulb best than CFL?

A: CFL or Compact fluorescent lamps were used in place of tungsten bulbs for long time. They work by…

Q: Chlorine has 17 electrons. According to the modern atomic theory, how many electrons are found in n…

A: Number of electrons found is n = 2

Q: What results from an unequal sharing of electrons between atoms?

A: Electrons are carriers of charges.

Q: 2. Spectrum of the specific wavelengths at which compounds absorb 4. is measured in the…

A: Answer 2 : Absorbtion is maximum at around                      510 nm at which all subjects…

Q: 234sin(θ)+390cos(θ) is θ= 59.04° what about  -46.8sin(θ)+78cos(θ) θ=?

A:

Q: Why is boron less chemically reactive than beryllium? O A. Boron needs to gain 3 electrons to have a…

A: Why is boron less chemically reactive than beryllium because boron needs to loose 3 electrons while…

Q: The smallest particle of any chemical element that can exist by itself and yet retain the qualities…

A: We know that, According to Dalton's atomic theory Matter is indivisible But it was wrong Further…

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

A: Answer              A)  2/3 and -2/3

Q: How many e- can occupy (fit on) the first energy level? Type number here How many e- can occupy (fit…

A: The first energy level can hold only two electrons.

Q: How does a molecule differ from an atom?

A: Atom is the smallest unit of matter. It is the smallest part an element can divide into. Also, atom…

Q: 1. All of the things around 2. If you keep cutting an object in half again and 3. The word atom…

A: Since you have asked multiple questions, we will solve question 5 for you. If youwant any specific…

Q: Describe the basic structure of the atom, the substructure of all matter.

A: Structure of an atom. The atom is comprised of electron, proton and neutron. They are the subparts…

Q: The value of Z in the element symbol below is called the Atomic Number and determines what type of…

A: Required :  The value of Z in the element symbol below is called the Atomic Number and determines…

Q: density of platinum is 21.45 x 103 kg/m3. a. Calculate the volume (in m3/atom) occ

A: density= mass/volume

Q: may I ask why it's not mgsinteta??

A:

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: