Why did Rutherford think that there was a nucleus in the middle of the atom surrounded by space?   some of the alpha particles in the gold foil experiment bounced back   some of the alpha particles in the gold foil experiment were deflected   some of the alpha particles in the gold foil experiment passed through

Q: What are the mass numbers and atomic numbers of the following isotopes? a. iodine-131 b.…

A: Mass number is the sum of number of neutrons and number of protons.An atomic number is the number of…

Q: Explain the structure of an atom, including its main particles

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Q: What is a quark?

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Q: beryllium has a nucleus composed of protons and neutrons. Given the data, how many protons are in a…

A: Beryllium (Be) is an element with group number 2 and period number 2.  The atomic number (Z) of…

Q: Which of the following lead to the discovery of an electron? O Cathode Ray Tube Perforated Cathode…

A: Electrons are negatively charged particles present in atoms that revolve around the positively…

Q: Electrons are negatively charged. Which experiment provided evidence to support this claim? What is…

A: Electrons are negatively charged particle.Electrons are discovered by J J Thomson by using cathode…

Q: List the number of protons ,neutrons, and electrons for ⁴⁰Ca²

A: Atomic number (Z) :-  The number of protons present inside the nucleus of an atom is known as atomic…

Q: What's ir

A: Nucleus contains two particles-1. protons and 2. neutrons.

Q: Which of the following terms or phrases describe the CATHODE RAY TUBE experiment? discovered the…

A: Cathode ray tube experiment was performed by Thomson. He discovered electron and m/e ratio to the…

Q: What composes the nucleus of an atom?

A: There are three basic particles present in an atom.  These are : electron (represented by e), proton…

Q: The particle described as follows 180 8 contains protons, neutrons, and electrons. **type numbers…

A: Atomic symbol is given by the general formZA​Xwhere,A is mass number.z is atomic number.X is the…

Q: How is stability in atoms achieved?

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Q: Which of the following characterizes an alpha ray? Choose all that apply. carries a positive charge…

A: Alpha particals are same as helium containing two proton and two neutron.

Q: Compare and contrast the three primary particles contained in atoms

A: Atom is a smallest particle which cannot be further divided   Atomic particels  atoms consist of…

Q: What does the number 84 represent in the name krypton -84?

A: Since we know that  a element having same atomic number but different mass number are known as…

Q: Which of the following terms or phrases describe the OIL DROP experiment? charged plates discovered…

A: In oil drop experiment proved that electrons contains fundamental charge .

Q: Gamma-ray photons have: O no mass and an electric charge of +1 no mass and an electric charge of -1…

A: Gamma rays (γ) are photons.

Q: Which particle, if lost from the nucleus, will not result in a change in the atomic mass number?

A: Which particle, if lost from the nucleus, will not result in a change in the atomic mass number?

Q: You buy a thin suit made of lead to protect yourself from radiation if we have a nuclear war. Your…

A: The penetrating power is the energy required to eject the radiation particles from an atom. When the…

Q: Which of the following particles will NOT undergo deflection in a magnetic field. A Alpha particles…

A: The particle having charge, deflected in the magnetic field, the positively charged particle…

Q: The mass and charge (composition) of the B- particle indicate that it is identical to an electron. *…

A: We have to tell whether the given statement is true or false

Q: Which particle, if lost from the nucleus, will not change the element (no change to atomic number)?…

A: Atomic No of any atom is the no of protons present on the atom.

Q: Yttrium-90 is a radioisotope used to treat liver cancer. Identify the missing part of the nuclear…

A: In the nuclear equation, total number of atomic number in reactant side is equal to total number of…

Q: Consider a sample of antimony collected from a different solar system. The sample contained 45.8…

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Q: Use the concept of charges to explain why an alpha particle fired toward the nucleus is deflected…

A: Solution :      Rutherford's performed a gold foil scattering experiment to explain the structure of…

Q: What is a stable isotope of lithium? How many electrons does it have?

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Q: A beta particle is identical to an electron true or false

A: A beta particle is identical to an electron ,this statement is true.

Q: The atomic particle having a mass of 0 amu and a charge of -1 is: Group of answer choices a proton…

A: An atom is composition of smaller particles called subatomic particles. The subatomic particles have…

Q: What caused the deflection of the alpha particles in Rutherford’s gold foil experiment?

A: What caused the deflection of the alpha particles in Rutherford’s gold foil experiment?

Q: For Barium-138, determine the nuclear radius and volume of the Barium-138 nucleus

A: It is the size of nucleus on assuming that shape of nucleus is spherical .

Q: By observing the scattering of alpha particles, Rutherford determined that atoms have: positive…

A: Rutherford  model is well-known as gold foil experiment in which he demonstrated that the atom has a…

Q: How many neutrons are present in P-31 and S-32? Select one: A. 15 and 14 B. 16 and 15 C. 16 and 16…

A: Given that:  Atomic mass of P(phosphorus) = 31 Atomic mass of S(sulphur) = 32 We know, atomic number…

Q: Describe how cathode rays are used to generate television and computer monitor images.

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Q: What led Rutherford to believe that atoms contain a positive nucleus? none of the above some alpha…

A: Rutherford deduced that the atomic nucleus was positively charged because the alpha particles that…

Q: How many protons, neutrons, and electrons are there in the following 119Sn atom?       50p; 69n;…

A: The number of protons are always equal to its atomic number.

Q: Which of the following is the type of particle that almost never interacts with normal matter?   a.…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: Which scientist used alpha particles to determine that atoms are mostly empty space? Rutherford…

A: Scientist Rutherford used alpha particle to determine that atom are mostly empty spaced. So option…

Q: Why gamma rays emission cannot result in the formation of a new element

A: A gamma ray, or gamma radiation (symbol γ ) is a penetrating form of electromagnetic radiation…

Q: H If and fused to form 7N , there would be

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Q: From the list below, choose the atoms that ONLY have radioactive isotopes. Gold Curium Bismuth…

A: Radioactivity is the property of certain atoms to spontaneously emit particles and/or energy from…

Q: Which element was used in alpha ray experiment?

A: The alpha ray experiment was first performed by the Rutherford. In this experiment, Rutherford…

Atomic Structure

The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.

Shape of the D Orbital

Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.