Which of the three subatomic particles was discovered first—the proton, neutron, or electron? Which one was discovered last?

Q: What is distinctive about isotopes of elements, and why are they important?

A: The atomic number of an element is expressed as the number of protons and it is equal to the number…

Q: The proton mass is 1.007276 amu, the neutron mass is 1.008665 amu, and the electron mass is…

A: Given Mass of proton(mp) = 1.007276 amu Mass of electron(me) = 0.0005486 amu Mass of neutron(mn) =…

Q: Identify the three subatomic particles

A: Atom is the smallest unit of matter. It is an indivisible particle.

Q: Arrange the following subatomic particles in order ofincreasing mass: neutron, electron, and proton.

A: The masses of neutron, proton, and electron are; mneutron=1.67493×10-27 kgmproton=1.67262×10-27…

Q: In a naturally occurring sample, 19.8% of boron atoms have five neutrons and 80.2% have six…

A:

Q: What is an isotope? How are isotopes denoted?

A: Molecular mass is the sum of protons and neutrons of an atom. In the modern periodic table, the…

Q: Which statement about subatomic particles are true? Protons have twice the mass of neutrons

A: Subatomic atomic particles: A standard atom consists of three subatomic particles:  Electron Proton…

Q: Differentiate between an ion and an isotope

A: In order to differentiate between two species it means the difference between the species needs to…

Q: which of three subatomic particle was discovered first - the proton, neutron or electron?

A: The subatomic particle out of the three that was discovered first is to be identified- the proton,…

Q: Which statement about subatomic particles are true? Electrons are much lighter than neutrons.

A: Subatomic particles include electrons, the negatively charged, almost massless particles that…

Q: What subatomic particle is the primary concern of chemistry?

A: Bohr model gives information about three basic subatomic particles.

Q: Which statement about subatomic particles are false? Protons have about the same mass as neutrons.

A: An atom is made up of subatomic particles which are protons, neutrons and electrons.

Q: 37 The actual mass of a 17CI atom is 36.9659 amu. Calculate the mass deficiency (amu/atom) for a Cl…

A: Mass defect per atom is determined from the difference between calculated mass and theoretical mass.…

Q: The total number of subatomic particles (protons, electrons, and neutrons) in an atom of 75Ge is…

A: Given:An atom 75Ge __ 75 is the mass number

Q: Which statement about subatomic particles are false? Protons and neutrons have charges of the same…

A: Proton, neutron and electrons are the subatomic particles present in an atom.

Q: 47 How many protons and neutrons are in an atom of Sc ? Number of protons = ? Number of neutrons

A:

Q: An atom containing 19 protons, 20 neutrons, and 19 electrons has a mass number of?

A: Given, Number of protons = 19 Number of electrons = 19 Number of neutrons = 20

Q: How are protons and neutrons similar? How are they different?

A: Similarities: Protons and neutrons have almost the same mass and are both located in the nucleus of…

Q: the isotope with 33 protons and 40 neutrons in its nucleus

A: Given : number of protons is 33. And number of neutrons = 40

Q: List the three main subatomic particles?

A: Stable particles which Play important role formation of atoms of matters called as main subatomic…

Q: What is the difference between protons and neutrons?

A: We have to write the difference between protons and neutrons.

Q: What is the name of the following atoms a) an atom? with 3 protons and 4 neutrons.

A: Given that, a)an atom with 3 protons and 4 netrons What is the name of it?

Q: 1.What are the properties og subatomic particles?

A: Given : Subatomic particles To find : Properties of subatomic particles  Solution : Everything is…

Q: Which statement about subatomic particles are true? Electrons are attracted to protons.

A: Electrons are negatively charge and protons are positively change particle, so by this opposite…

Q: Name the two parts of an atom, where you can find the following subatomic particles (protons,…

A: Atom is electrically neutral and consist of electron , proton and neutrons.  Electrons are…

Q: Which of these pairs of atoms are isotopes? Atom A: 13 protons, 12 neutrons and 12 electrons. Atom…

A: Definition of isotopes =>  Isotopes are those whose atomic number is same (means number of proton…

Q: Which statement about subatomic particles are false? Some atoms don’t have any protons.

A: All atoms have protons.  Every atom has fixed number of number of protons.

Q: These masses of subatomic particles may be useful for the following question(s). electron 0.00055…

A: Given:: Mass of Cl-37=36.9659 amu mass of proton=1.0073 amu mass of neutron=1.0087 amu mass…

Q: Define the terms Neutrons, Protons, and Nucleus?

A: The atom has three fundamental particles known as neutron, proton, and electrons.

Q: What would be the approximate mass of a particle that has 48 electrons, 46 neutrons and 52 protons?

A: No of electrons = 48 No of neutrons = 46 No of protons = 52

Q: Is the statement consistent with Rutherford’s nuclear theory as it was originally stated? Why?…

A: Rutherford's nuclear theory is based on three key points- (a) The nucleus is the core of the atom,…

Q: What will expected mass of atom that is 40Ar (it contains18 protons, 22 neutrons and 18 electrons)…

A: Final answer :- 39.948

Q: An 18 O atom contains the same number of protons. neutrons, and electrons.

A: Given atom, 8O18