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    an atom of a certain element has 36 protons, 36 electrons, and a mass number of 84. at room temperature this element is a very stable gas. how many neutrons are in this atom?

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    An atom of a certain element has 36 protons, 36 electrons, and a mass number of 84. At room temperature this element is a very stable gas. How many neutrons are in the atom?

    An atom of a certain element has 36 protons, 36 electrons, and a mass number of 84. At room temperature this element is a very stable gas. How many neutrons are in the atom?? >>

    An atom of a certain element has 36 protons, 36 electrons, and a mass number of 84. At room temperature this element is a very stable gas. How many neutrons are in the atom?

    An atom of a certain element has 36 protons, 36 electrons, and a mass number of 84. At room temperature this element is a very stable gas. How many neutrons are in the atom?

    This is a List of Available Answers Options :

    48 36 84 -36

    The best answer is A. 48.

    Reported from teachers around the world. The correct answer to ❝An atom of a certain element has 36 protons, 36 electrons, and a mass number of 84. At room temperature this element is a very stable gas. How many neutrons are in the atom?❞ question is A. 48.

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    8th STAAR review Matter and Energy

    Find and create gamified quizzes, lessons, presentations, and flashcards for students, employees, and everyone else. Get started for free!

    QUIZ

    8th STAAR review Matter and Energy

    8th STAAR review Matter and Energy 57%

    160

    Chemistry Deleted User 6 years

    11 Qs

    1. Multiple-choice 1 minute

    Q. A chemist is identifying the elements present in a sample of seawater. What characteristic of an element’s atoms always determines the element’s identity?

    answer choices

    The number of protons

    The number of neutrons

    The location of valence electrons

    The number of valence electrons

    2. Multiple-choice 1 minute

    Q. A researcher wants to experiment with an element that reacts like phosphorus (P) but has a greater atomic mass. Which element should the researcher select for the experiment?

    answer choices Nitrogen (N) Sulfur (S) Arsenic (As) Silicon (Si) 3. Multiple-choice 1 minute

    Q. * answer choices Boron (B) Carbon (C) Neon (Ne) Sodium (Na) 4. Multiple-choice 1 minute Q. * answer choices

    12CO2 + H20 --light--> C6H12O6 + O2

    CO2 + 9H20 --light--> C6H12O6 + O2

    CO2 + H20 --light--> 3C6H12O6 + O2

    6CO2 + 6H20 --light--> C6H12O6 + 6O2

    5. Multiple-choice 1 minute

    Q. Hay is made up of organic compounds. What are the main elements in many organic compounds?

    answer choices

    Helium, Carbon, Sodium

    Sodium, Hydrogen, Nitrogen

    Carbon, Hydrogen, Oxygen

    Radon, Oxygen, Helium

    6. Multiple-choice 1 minute Q. ** answer choices CO H2O CO2 H2 7. Multiple-choice 1 minute Q. ** answer choices

    one of the original compounds came out of solution

    the solutions reacted chemically

    some of the water froze into ice crystas

    rapid evaporation of water occurred, leaving a solid

    8. Multiple-choice 5 minutes

    Q. What describes the ability of a solid to dissolve in water?

    answer choices melt dissapear solubility evaporate 9. Multiple-choice 30 seconds

    Q. An atom of a certain element has 36 protons, 36 electrons, and a mass number of 84.  At room temperature this element is a very stable gas.  How many neutrons are in this atom?

    answer choices 48 36 84 120 10. Multiple-choice 1 minute

    Q. An atom has 25 protons, 30 neutrons, and 25 electrons. What is the charge of the atom’s nucleus?

    answer choices +25 +30 -25 -30 11. Multiple-choice 1 minute

    Q. A chemist is identifying the elements present in a sample of seawater. What characteristic of an element’s atoms always determines the element’s identity?

    answer choices

    The number of protons

    The number of neutrons

    The location of valence electrons

    The number of valence electrons

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    The mass number of common krypton is 84, and its atomic number is 36. krypton

    "48 neutrons" The mass number, A, of a given isotope tells you the number of protons, Z, which is given by the atomic number, and neutrons it has in its nucleus. color(blue)(|bar(ul(color(white)(a/a)A = Z + "no. of neutrons"color(white)(a/a)|))) In your case, krypton-84 is said to have a mass number equal to A = 84 This means that the nucleus of a krypton-84 isotope contains a total of 84 protons and neutrons. Since the element has an atomic number equal to 36, it follows that it will contain 36 protons in its nucleus. Therefore, the number of neutrons present in the nucleus of a krypton-84 isotope will be "no. of neutrons" = A - Z "no. of neutrons" = 84 - 36 = color(green)(|bar(ul(color(white)(a/a)color(black)(48)color(white)(a/a)|)))

    The mass number of common krypton is 84, and its atomic number is 36. krypton-84 has how many neutrons within each isotope?

    Chemistry Matter Mass Number

    1 Answer

    Stefan V. Jun 23, 2016 48 neutrons

    Explanation:

    The mass number, A

    , of a given isotope tells you the number of protons,

    Z

    , which is given by the atomic number, and neutrons it has in its nucleus.

    ∣ ∣ ∣ ∣

    ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯

    a a A = Z + no. of neutrons a a ∣ ∣

    −−−−−−−−−−−−−−−−−−−−−−−−−−

    In your case, krypton-84 is said to have a mass number equal to

    A = 84

    This means that the nucleus of a krypton-84 isotope contains a total of

    84

    protons and neutrons.

    Since the element has an atomic number equal to

    36

    , it follows that it will contain

    36

    protons in its nucleus. Therefore, the number of neutrons present in the nucleus of a krypton-84 isotope will be

    no. of neutrons = A − Z no. of neutrons = 84 − 36 = ∣ ∣ ∣ ∣ ¯¯¯¯¯¯¯¯¯¯¯¯ a a 48 a a ∣ ∣ −−−−−−−

    http://www.sciencephoto.com/media/553898/view

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    James 11 day ago
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