Is each of the following statements true or false?a. A proton and an electron have opposite charges.b. The nucleus contains most of the mass of an atom.c. Electrons repel each other.d. A proton is attracted to a neutron.

Q: Determine what was wrong with Dalton’s theory andprovide the most recent version of the atomic…

A: Dalton's theory is one of the theories that were given for having a close view of the structures of…

Q: Describe the Rutherford's α-particle bombardment experiment. Explain the Rutherford Atomic Model…

A: Solution :      Rutherford's atomic model put forward by Ernest Rutherford to explain the atomic…

Q: Determine the mass of a sample

A: Given: The volume of the sample of chromium is 2.4 cm3.

Q: How and by whom was the electron discovered?

A: The electron was discovered by an English physicist J.J Thomson.  J.J Thomsom performed a…

Q: Describe Rutherford’s planetary model of the atom.

A: Rutherford model or Rutherford atomic model or nuclear atom, or the planetary model of atom gives…

Q: If atoms have mostly empty space, so how does matter stay strong? please explain

A: The empty space in an atom is the space where the nucleus (proton+neutron) is absent.

Q: Using the three laws of matter, explain each of Dalton's postulates.

A: Dalton's postulates has to be explained with the help of three laws of matter.

Q: What is the exciting state of the atom?

A: The definition of exciting state of the atom has to be given,

Q: 13. What were the 4 ancient elements that Empedocles described? 14. List the six ideas of John…

A:

Q: A sample of magnesium is found to contain 78.70% of 24Mg atoms (mass 23.98 amu), 10.13% of 25Mg…

A: The atomic mass of an element is the average of masses of all the isotopes of that element present…

Q: Activity type of Alumina (meaning of type I, II, III, etc.) what do the numbers mean?

A: Alumina is a granular and extremely porous form of aluminum oxide. It is available in basic, acidic…

Q: Changing the number of electrons in an atom changes the atom’s..

A: Atomic Charge

Q: + а. Bohr b. Dalton C. Rutherford d. Thomson 3. Which atomic model was the first to show a nucleus,…

A: 27) in the Given figure, the model of an atom was proposed by Thomson.

Q: As an atom in the excited state moves to the ground state, what happens to the excess energy? O A.…

A: When an atom goes from excited state to ground state it release the energy in the form of light,…

Q: atomic number for the calcium isotope with 22 neutrons Express your answer as an integer.

A: Isotope : Element with same atomic no. but having different no. of neutrons.

Q: mass number for the chromium isotope with 29 neutrons Express your answer as an integer.

A: Naturally occurring chromium consists of the following four isotopes: 50Cr, 52Cr, 53Cr and 54Cr. The…

Q: a. Explain how atoms of different elements differ from one another.b. Explain how atoms of different…

A: a).

Q: How to get atomic mass protons electrons and neutrons? How do cation and anion work?

A: Atom consist of a heavy mass in the center which is known as nucleus. Nucleus contains protons and…

Q: A friend from your general chemistry class claims that the nucleus occupies a large volume in an…

A: The person claims that nucleus occupies a large volume in an atom. Let's see whether the claim is…

Q: the major portion of an atom's mass consist of

A: Atom Consists generally basic three particle-1. Electron,2.Proton 3. Neutron. there are two part-…

Q: The subatomic particle known as the proton has a mass of 1.67x10-24 g and a diameter of 1.00x10-13…

A: Density is the measure of mass per unit volume. Given data:  Mass of proton = 1.67 × 10-24 g,…

Q: In the simulation, what was the maximum number of electrons that could be put on the orbit farthest…

A: 18 electron  The M shell can be put 18 electron as we move to higher atomic number

Q: What can u conclude about atoms with the most number of holes? Why?

A: The smallest unit of ordinary matter that makes up a chemical element is an atom. Every solid,…

Q: List and explain Dalton's atomic theory (postulates). Explain which postulates were rejected and…

A: John Dalton gave the first postulates about the structure of an atom......

Q: Use the models to answer the following question. Model A Model B Which is the correct model and…

A: Given  Model A and Model B diagram is given  To find : Correct statement = ?

Q: What model of the atom views an electron as a cloud of negative charge shaving certain geometrical…

A: We need to determine the model which views the electron according to given description.

Q: The Periodic Table: 1. Where can you find the atomic number on an element on the periodic table?

A:

Q: Which of the following  NOT correctly matched the scientists and their models? Select one: a. J. J…

A: We have to choose the correct statement for the following given scientists and their models as…

Q: what are atoms

A: The term atom is defined in step two.

Q: Could Rutherford make any conclusions about neutrons and electrons based on the experiment's results…

A:

Q: CHEM&110 Homework Chapter 1 1. In these diagrams, two different types of atoms are represented by…

A: (1) Any Substance that has mass and occupy volume, and can be sensed by our sense organs, is called…

Q: Compare and contrast the contributions of J. J. Thomson, Ernest Rutherford, and Neils Bohr in a Venn…

A: J.J.Thomson proposed a plum-pudding model which states that atoms have an overall neutral charge.…

Q: If atoms are primarily composed of empty space,explain why you cannot pass your hand through a…

A: Every object and matter is composed of smaller building units called atoms. Atoms are composed of a…

Q: 12. Given the elements name and its mass

A: The isotopic symbol in addition to this also known as the nuclear notation allows a very simplistic…

Q: Why Rutherford’s model could not explain the stability of an atom?

A: Models for electrons- J.Thomson in 1897 discovered electron with the help of cathode ray tube…

Q: n Bohr's atomic theory, when an electron moves from one energy level to another energy level more…

A: According to bohr atomic theory,electrons revolve around nucleus in orbits whose energies are…

Q: Describe Rutherford alpha scattering experiment

A:

Q: Describe the motion of the particles from A to B

A: The Time-Temperature graph has temperature on the vertical Y-axis and time on the horizontal X-axis.…

Q: scanning electron microscope a.Uses glass lenses to focus the image of the sample b.Scans a proble…

A: A scanning electron microscope is used for the detection of the samples.

Q: Discuss the development of atomic model and what experiments did scientists conducted to discover…

A: Dalton's atomic model: Postulates: All matter is made up of tiny, indivisible particles called…

Q: Select the correct answer from each drop-down menu. A molecule of chlorine has atoms of the same…

A: Element : An element is a substance that cannot be broken down into any other substance. Every…

Q: If atoms of helium, neon, argon and krypton gas are moving at the same speed, which atom would have…

A: Given gases are - helium, neon, argon and krypton.

Q: Explain the relationship between an atoms number of electrons it’s relative stability

A: An atom contain negatively charged electrons and positively charged nucleus.

Q: Based on the bohr model explain the location of the lithium element on the periodic table. Why is it…

A: Answer

Q: Question attached

A: We know that the density is defined as the mass occupied by the substance per unit volume Density =…

Q: elements will gain electrons

A:

Q: In Rutherford’s gold foil experiment, which particle(s) were used? Group of answer choices α-rays…

A: Alpha rays (radiation) is the emission of an alpha particle (helium nuclei). Beta rays (radiation)…