1.Which of the following elements is not an alkali metal? a. Li b. Na c. K d. P

Q: You are given the following information about an element: atomic number = 17, atomic mass= 35.45,…

A: Atomic number of any atom refers to the number or count of protons present in the nucleus of that…

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: How many protons, neutrons, and electrons are in A. 12 protons, 15 neutrons, 18 electrons B. 15…

A:

Q: All atoms of a given element have the same ______.mass number. c. number of nucleons.number of…

A: An atom is composed up of three subatomic particles  electrons, protons, and neutrons.

Q: 1. Which of the following substances is an element? А. Ice В. Coal С. Sand D. Iron 2. Which of the…

A: The structure of an atom, as studied by scientist such as J. J. Thomson, Ernest Rutherford and Neils…

Q: Determine the number of electrons in the Cl -1 ion. a. 17 electrons b. 18 electrons C. 1 electron d.…

A: Given,

Q: As we saw in the previous problem, lithium has two naturally occurring isotopes: Li-6 (natural…

A: The mass which is closest to the atomic mass of Li has to be given.

Q: What are the ions involved in these elements?

A: A. HgSO4 = Hg^2+ + SO4^2-  So, in HgSO4 the ions involved are : Hg^2+ and SO4^2-.  B. Ca(OH)2 =…

Q: 1. Fill in the blank spaces in the table. Element Atomic Mass Protons Neutrons Electrons number…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: 32. Categorize each element as a representative element, a transition metal, or a noble gas. a.…

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Q: 47. Of the elements shown in the Periodic Table, which is the most reactive? * III IV V VI VI| Ne I…

A: 47. We need to determine most reactive element.  48. We need to tell the non metal in group 1.  49.…

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: A fictional element has 2 isotopes and an atomic mass of 67.18 amu. If the first isotope is 66 amu…

A: Average atomic mass can be determined by the equation given below:

Q: 1. Write the three characteristics of metals and nonmetals. Metals Nonmetals 2. List the subatomic…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: Select all of the following elements that are categorized as non-metals. OA. Ag O B. K O C.B O D.S O…

A: Non metals : These are the elements which are placed to right corner of the periodic table and have…

Q: Identify each of the following as a metal, a nonmetal, or a metalloid.a. oxygen c. germaniumb.…

A: Each of the following has to be identified as a metal, a nonmetal, or a metalloid.

Q: 4. 14N and 1C have the same number of A. isotopes. B. protons. C. neutrons. D. electrons.

A: The subscript denotes the atomic number and the superscript denotes atomic mass.

Q: olecule in units

A: Dear student I have given answer to your question in the image format.

Q: Why do atoms combine chemically with other atoms?

A: To explain: Why do atoms combine chemically with other atoms?

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: Element X has two stable isotopes: 35X - 75.77%, 34.97 amu 37X - 36.97%, 36.97 amu a.  Calculate the…

A: a) Note : the % you have mentioned for 37X is not possible as total % of both is becoming > 100%…

Q: Determine the number of protons and the number of electrons in each ion.a. Al3 +               b.…

A: The electronic configuration for a given atom can be defined as the representation of the…

Q: Neutron was discovered by *

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Q: Identify the following atoms using their symbols: a. contains 20 protons b. contains 12 electrons…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

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: From the results of his gold foil experiment, Rutherford concluded that   Group of answer choices A.…

A: From the results of his gold foil experiment, Rutherford concluded that atoms are composed of a…

Q: 4. Antimony has many uses, for example, in infrared devices and as part of an alloy in lead storage…

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Q: 17. Write the atomic mass for Carbon to 3 significant figures.

A: Carbon is non metal  Carbon Symbol is C  Carbon atomic number  is 6  Carbon electronic configuration…

Q: a. Atomic Number on the Periodic Table b. Positive charge particle located in the nucleus c.…

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Q: . Using the average atomic mass of carbon, calculate the mass (in amu) of 227 carbon atoms. amu .…

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Q: Provide the symbol of the following monoatomic ions, given the number of protons and electrons in…

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Q: Match terms with their definitions v Avogardo's number v Molar mass v mole v Atomic mass A. mass of…

A: The mole concept was proposed by Avogadro to specify the atoms, molecules, and ions concentration.…

Q: Match the elements…

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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: 1. Write the number and name (if any) of the group (family) to which each of the following elements…

A: In the periodic table,  The vertical columns are called groups. There are 18 groups in total in the…

Q: The neutral hydrogen atom consists of   a. one proton and one neutron.   b. one proton, one…

A: Atomic number of hydrogen atom is 1. It is the first atom in the periodic table.

Q: Which of the following statements best describes the elements in Group 8A (18) of the periodic…

A: The elements in Group 8A (18) are : Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe) and…

Q: 7. For the following elements, give their name and their atornic number Name Atomic Number a. F b.…

A: Hi, as you have posted multiple questions and have not mentioned which question you want us to solve…

Q: 6. Who discovered the nucleus of the atom? A. Dalton B. Rutherford C. Millikan D. Thomson

A: Since you have asked multiple questions, we will answer the first one for you. Kindly post the…