Which of the following is the most important factor in determining the chemical properties of an element?

Q: A. Explain how you would determine the number of neutrons in a chlorine atom that has a mass number…

A: Given, A chlorine atom has a mass number of 37 Another chlorine atom has a mass number of 35…

Q: symbols of each atom,

A:

Q: How many neutrons, protons, and electrons does126 52Te have?A. 126 neutrons, 52 protons, and 52…

A: Interpretation - To find number of neutrons, protons and electrons in Te52126.

Q: Which of the following statements is incorrect? A. Protons are positively charged. B.) Protons…

A: Atom is made up of 3 particles 1) Proton 2) Neutron  3) electron

Q: 1. Which of the following is not one of Dalton's laws? a) Atoms are indestructible. b) Atoms of the…

A:

Q: Which statement about the three fundamental particles is false? O a. The charge of a proton is equal…

A: Electrons, protons and neutrons are considered as fundamental partials of atom

Q: What makes up most of the volume of an atom?A. protonsB. neutronsC. electronsD. empty space

A: The smallest particle of an element is called an atom. Atoms of different elements are of different…

Q: Write the symbol for the isotope described. a. 12 protons, 12 electrons, 13 neutrons b. 17 protons,…

A: Note : As per our guidelines we are supposed to answer first 3 parts. please repost other parts as…

Q: Which of the following elements would be classified as a nonmetal? a.) silicon  b.) francium c.)…

A:

Q: Atomic Information Sample Number of Protons Number of Neutrons 44 36 36 46 36 48 4. 36 50 Which…

A: we know if an atom has the same atomic number but a different mass number then it is called…

Q: After Rutherford discovered the nucleus, which model of the atom is thought to be true? * O Protons,…

A: Rutherford discovered the nucleus by the alpha scattering experiment.

Q: Discuss the structure of an atom in terms of its electrons, protons, and neutrons.  b) A neutral…

A: The structure of an atom is similar to the solar system in which all the planets revolve around the…

Q: PART I: ATOMIC STRUCTURE Build an Atom simulation (https://goo.gl/LgLznB) 1. Explore the Build an…

A: An atom is the smallest particle of matter that participates in a chemical reaction, though it is…

Q: Calculate the mass ratio of a bromine atom to an atom of A.) neon B.) calcium C.) helium

A: Calculate the mass ratio of a bromine atom to an atom of A.) neon B.) calcium C.) helium

Q: Match these atomic diagrams to the correct element names. Red = electrons, blue = atomic nucleus A.…

A: -> Nucleus contains proton and neutrons. -> Number of electrons is equal to number of protons,…

Q: Which of the subatomic particles contributes almost no weightto an atom?a. protons in the electron…

A: The subatomic particles which does not contribute to almost no weight of an atom has to be given.

Q: 16. Give complete symbols of each atom, including the atomic number and the mass number. a. a…

A: An atom has nucleus. Protons and neutrons are present in nucleus. Electron revolve around the…

Q: 1) a. Define mass number of an atom with examples. b.what is nucleus and electron of an atom?

A: Mass number is  the sum of the numbers of protons and neutrons present in the nucleus of an atom.

Q: . Dalton's Atomic Theory included all of the ideas listed below except   a. All atoms of a given…

A: Ans-32  The postulate that does not give my dalton atomic theory is - An atom is composed of very…

Q: Which statement about the three fundamental particles is false? a. The charge of a proton is equal…

A: Given data:- three fundamental particles Electron, proton & Neutron.  Find false statements…

Q: Locate each element in the periodic table and classify it as a metal, nonmetal, or metalloid. a.…

A: Titanium belongs to group 4 and is present in d block. It is a metal. Chlorine belongs to group 17…

Q: postulate in the atomic theory did the discovery of isotopes contradict

A: The postulates of atomic theory are shown below: Matter is made up of small indivisible particle is…

Q: 13. .... ...The mass of the Avogadro constant of atoms, g/mol. normally, this is the average number…

A: We are to discuss that what the entity is known as, defined by the mass of avagadro constants of…

Q: Which of the following statements is false? a. The proton and neutron are primarily responsible for…

A: we have to select the false statement

Q: The existence of isotopes violates one of the original ideas of Dalton’s atomic theory. Which one?

A:

Q: Atoms differ from ions in number of

A: Atoms are neutral; they contain the same number of protons as electrons. an ion is an electrically…

Q: Atomic number of an element = number of:        2.  Atomic mass of an element = number of    ..…

A: Atomic Number: It is defined as the total number of protons present in an atomAtomic Mass: It is…

Q: Models neutrons can are be used to show the structure of an atom, The protons and clustered aroUnd…

A: The element which was shown in the given model has to be identified.

Q: 5. Which of the following particles has the smallest mass? A. Electron B. Proton C. Neutron D.…

A: Identify the smallest particles among the given paticles ?

Q: True or False...and why? a.) If you change number of protons, you have isotopes of an element b.)…

A: Given: a.) If you change number of protons, you have isotopes of an element b.) If you change number…

Q: 2. What is the charge of an atom's nucleus? a. positive b. no charge c. negative d. can be positive…

A:

Q: A certain element X has four isotopes. • 4.350% of X has a mass of 49.94605 amu. • 83.79% of X has a…

A: From part B, Average atomic mass of element X = 52 amu Mass of electron = 9.1× 10-31 kg mass of an…

Q: An isotope of chlorine has 20 neutrons. •What is the mass number of the chlorine isotope? •How…

A: Atomic number = Number of protons = number of electrons Mass number = Number of protons + Number of…

Q: Which part of John Dalton’s theory was disproved by J.J. Thomson’s cathode-ray tube experiments?…

A: To find: Which part of John Dalton’s theory was disproved by J.J. Thomson’s cathode-ray tube…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.