10. In what year did Albert Einstein prove the existence of atoms Ernest Rutherford do his Gold Foil experiment 11. What is an alpha particle made of?

Q: Which of the following particles would attract each other? Would repel each other?

A: The answer for first question is given below. Kindly repost the other questions as separate…

Q: Please may you help me with following homework questions.  Q1. Describe the nuclear model of an…

A: Atom is a small unit which repeat itself and form the whole element. A pure element has all same…

Q: Why are some atoms radioactive?

A: The radioactive nuclei are unstable and have an excess number of either protons or neutrons in the…

Q: Briefly describe the experimental basis for believing that the nucleus occupies a very small…

A: Rutherford had the gold foil experiment where he bombarded alpha particles on a thin sheet of gold…

Q: Electron capture leads to the: (A) emission of an electron from the second shell in an atom. B…

A: Electron capture leads to ?

Q: Which of the following particles would attract each other? Would repel each other? Rank the…

A: Opposite charges attract each other while similar charges repel each other. Therefore, electrons and…

Q: 85 11. For the Isotope 38Sr A. What is the atomic number? B. What is the mass number? C. What is the…

A: The given symbol for isotope is 8538Sr A) The atomic number is represented by the subscript.     The…

Q: What is the symbol for an atom of Cd that has 13 extra neutrons and what is that called ?

A: Cd is present alongwith Zn and Hg i.e. it is kept in d-block although it is not a typical d-block…

Q: Image a chemist was trying to create a stable isotope with 60 protons and a mass number of 155.…

A: The nucleus consists of protons and protons that are responsible for the overall mass of the atom.…

Q: 2. In a certain fission reaction, U-235 (atomic no 92) reacts with a neutron to form Cesium- 138…

A: Balanced nuclear equation is the equation in which the sum of subscripts as well as sum of…

Q: 10. For the Isotope 6731Ga A. What is the atomic number? B. What is the mass number? C. What is the…

A: Question 10: Given isotope is: 6731Ga. What is its atomic number? What is its mass number? How many…

Q: What is the atomic nucleus?

A: An atom is the smallest basic unit of everything in the universe. However an atom have its subatomic…

Q: Define alpha particle, beta particle, and gamma ray.

A: Nuclear reactions are reactions in which one or more nuclei are produced from the collisions between…

Q: . Given 24/14 Si, a) Find the number of protons, electrons and neutrons in the neutral atom.

A:

Q: Indiana Jones replaces the idol with a bag of sand of approximately equal volume: (Denisty of gold =…

A: The density of a substance is given by:

Q: For the Isotope 8538SrA. What is the atomic number?B. What is the mass number?C. What is the number…

A: a) for 8538Sr  Atomic number = 38  as atomic number is always written in lower left of the element…

Q: What is the meaning of half-life of an isotope. Explain with the help of an example

A: What is the meaning of half-life of an isotope. Explain with the help of an example

Q: The atomic masses of hydrogen-2 (deuterium), helium-4, and lithium-6 are 2.014102 amu, 4.002602 amu,…

A: Atomic masses hydrogen, H = 2.014102 amu

Q: Who presented the idea of neutron particle in nucleus? Frederic Soddy Ernest Rutherford Niels Bohr O…

A:

Q: protons and neutrons in a nuclear change is correct? a-The number of protons in the number of…

A: In balanced nuclear reaction,  Number of protons and mass number in reactant side is equal to number…

Q: Explain how the cathode ray was discovered.

A: Cathode rays are the beam of electrons that are observed in vacuum tubes. They are also called…

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?

A:

Q: 5. Some atoms have various medical uses. Fill in the missing information for the atoms in the…

A: Fill the missing information---

Q: stable

A: Hydrogen consists of three isoptopes namely protium, deuterium and tritium. Protium consists of one…

Q: 244Pu undergoes radioactive decay, emitting 4 alpha particles and 5 beta particles. What is the…

A: An alpha particle is equivalent to a Helium atom A beta particle is similar to an electron

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: What is the zone of stability? What are three decay processes that help an isotope get to the zone…

A: Zone of stability or band of stability is the region in the plot of number of protons versus number…

Q: number of protons, neutrons, and electrons

A:

Q: Boron-10 is able to absorb neutrons and is therefore used in control rods in nuclear reactors. After…

A: Radioactive decay refers to the breakdown of an unstable nucleus to a stable nucleus with the…

Q: In ______, an _ particle (identical to a helium nucleus of two protons and two neutrons) is ejected…

A: A radioactive decay in which alpha particle decays into another nuclei with a mass number reduced by…

Q: Results of Firing Alpha Particles at Gold Foil Observation Proportion: Alpha particles went straight…

A: The given table is the experimental analysis of Rutherford's gold foil eperiment, He sends a  narrow…

Q: Which are the three basic parts of the nuclear theory of the atom?

A: The nuclear theory of the atom is given by Rutherford which has the following basic parts. In the…

Q: Why are electrons in a cathode-ray tube deflected by electric fields?

A: Given information,    The electrons in a cathode-ray tube deflected by electric fields

Q: What is the ratio of density of the nucleus to that of water?

A: The density of a substance is given as  mass per unit volume. i.e density = mass/ volume

Q: [d] Do the same with these five words: beta, neutron, uncertainty, decay, electron.

A: [c] Write a single sentence, using all of these five words plus other words, that makes scientific…

Q: Which particle, if lost from the nucleus, changes the atomic mass the greatest?   a. proton   b.…

A: b. alpha particle

Q: A0.500 g sample of rock was found to have 2.45 × 106 mol of potassium-40 (t1/2 = 1.3 × 10° yr) and…

A:

Q: When Rutherford conducted his gold foil experiment, he hypothesized that most of the alpha particles…

A: Rutherford initially thought that the atom consists of a electrons which are spread uniformly…

Q: Which scientist said electrons move around the nucleus billions of times in one second?

A: Several theories were given and attempts were made to elaborate the actual structure of the atom.…

Q: 14. In the equation 228 90Th 22891PA + X which particle is represented by X?

A:

Q: 5. An atom of 41Ca is hit by an alpha particle that sticks to it. a. What is the atomic number of…

A: Alpha particle : 24He

Q: In 1909, a team of British scientists led by Ernest Rutherford, carried out the Gold Foil Experiment…

A: Gold Foil Experiment helped to determine the arrangement of particles in the atom.

Q: What are Cathode rays?

A: Given information,      Cathode rays