Which of the following statements are true of chemical reactions? a. The number and types of atoms are the same in the products and the reactants.  b. Different isotopes of the same element behave similarly. c. New elements are often formed. d. Only the valence electrons are involved.

Q: 1. What is the difference between carbon-13 and carbon-14? a. The number of electrons b. The number…

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Q: An atom in which the number of protons is no longer equal to the number of electrons is ___.   A.…

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Q: Which best describes isotopes? A. Same number of neutrons, different number of electrons B. Same…

A: atoms of the same element have the same number of protons, but some may have different numbers of…

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…

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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: Which of the following is False?a. An element is defined by its atomic number.b. Ninety-two elements…

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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 statements is correct? a. All elements must contain protons, neutrons and…

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Q: If two neutral atoms are isotopes of each other, which of the following statements are true. More…

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Q: 21. What force holds electrons near the nucleus of the atom? A. Strong nuclear force B.…

A: From the concept of periodic trends of elements and atomic mass of elements the following questions…

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. Which of the following element has an average atomic mass that is about ten times that of…

A: The average atomic mass of an element is the sum all the masses of its isotopes existing in nature ,…

Q: Which statements are consistent with Rutherford’s nuclear theory as it was originally stated? Why?a.…

A: Rutherford's atomic model also named as "nuclear model". As per Rutherford's nuclear theory, any…

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: .What is one way an atom can become more stable? a.by emitting particles and excess energy from its…

A: Stability and energy is inversely proportional to each other. The more the energy means, the less…

Q: Neutron was discovered by *

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Q: Please help me with questions 1 and 2 1. What is an example of matter? A. Light B. None of the…

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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: Atoms of a specific element that have the same number of protons but a different number of neutrons…

A: An atom is made up of protons, neutrons, and electrons. Protons and neutrons together called…

Q: In any neutral Adam there are equal numbers of? A. Neutrons and electrons B. Protons and neutrons…

A: Neutral atom are those having not any charge. They are wholely neutral

Q: wwww TTTTT The atom is a solid sphere that was allowed to participate in chemical reactions. 10.…

A: “Since you have asked multiple questions, we will solve the first question for you. If youwant any…

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: Mark the following statements as true or false. If a statement is false, correct it to make a true…

A: To find: The given statements as true of false

Q: UNIT 1 2. Which atom has six valence electrons? a. lithium d. neon b. carbon e. boron c. sulfur 3.…

A: 2) valence electrons: valence electrons are electrons which are present in the outermost shell of an…

Q: Which pair of elements do you expect to be the most similar? a. Molybdenum and Tin b. Nitrogen and…

A: Given,  a. Molybdenum and Tin  Electronic configuration of Mo = [Kr]4d55s1  Electronic configuration…

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: Which of the following is not one of the four postulates of the atomic theory?   Group of answer…

A: Atomic theory is given by John Dalton nearly around 1803.

Q: Which of the following statements is TRUE, and why? A. Anions are usually larger than their…

A: A. Anion: It is the negatively charged species which has more number of electrons than protons.…

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.