What is the mass number of a potassium (K) atom that has 20 neutrons? A 39 20 19 18

Q: II. Calculate the atomic weight of each element given the mass and natural occurrence of each…

A: We have given the masses and isotopic abundance of three isotopes of magnesium. Isotopes of an…

Q: How many neutrons are in an atom of 40K? Select one: O a. 21 O b. 40 Ос. C. 39 O d. 20 O e. 19 O O O

A: 1. Answer :- a) 21  Number of Neutrons in  40K = 21…

Q: 4. Complete the following table. Atomic Number of Element Symbol Mass Number Neutrons Number Охудen…

A: 4. the filling spaces can be seen as: We know that, Mass number = number of proton(Atomic number) +…

Q: Fill in the missing boxes in the chart below: Nuclear Symbol Neutrons Atomic Number Electrons Mass…

A: An atom is the smallest particle that is capable of independent existence. When an atom loses…

Q: See if you can complete the following table using only what is on this page. Hint: Two of the…

A:

Q: Calculate the atomic mass of element "X", if it has 2 naturally occurring isotopes with the…

A: Given : element X has 2 isotopes with mass and abundance as X-45 :  mass = 44.8776 amu and abundance…

Q: How many neutrons are there in an atom of  Ni60 ? a) 60 b) 30 c) 28 d) 32 e) 29

A: ANSWER

Q: How many neutrons are in an atom of 29 15 P

A: An atom is the basic and fundamental unit of matter. An atom consists of electron and the nucleus in…

Q: If xenon has an atomic number of 54 and a mass number of 108, how many neutrons does it have? a. 54…

A: Explanation/justification for the correct answer: The number of protons and neutrons in an atom of…

Q: The element magnesium has three naturally isotopes. Given the following information, calculate the…

A: The data given is,

Q: For each set of atoms identify the isotopes

A: For each set of atoms, isotopes are to be selected.

Q: Using your periodic table as a resource, complete the following table for each of the following…

A: A neutral atom contains same no. of protons and electrons.  The total no. of protons or electrons…

Q: 16 32.06 Identify the number of neutrons in one atom of sulfur with an atomic mass number of 34 amu.…

A: The mass number is the sum of number of Protons and number of Neutrons present in the nucleus of an…

Q: 53 +3 Cr 24 What is the atomic number?

A: Atomic number is 24 of given symbol.

Q: The average atomic mass of lithium is 6.941 amu. Lithium has two naturally occurring isotopes, 6Li…

A: Given:The average atomic mass of lithium = 6.941 amu% of Li isotopes = 6Li (7.52%) and 7Li…

Q: Consider an isotope of sulfur with a mass number of 32. The number of neutrons in this isotope of…

A: Given:mass no. of S = 32we know that,atomic no of S = 16alos,no of proton = atomic nono of proton in…

Q: How many neutrons are in the nucleus of an atom that has an atomic mass of 36 and an atomic number…

A: We are given a atom, lets say X having atomic number 25 and Atomic mass = 36.

Q: Calculate the number of neutrons in Krypton-80. Select one: a. 45 O b. 48 44 O d. 35

A: krypton is belong to the noble gases . nobles gases are present in last group of the periodic table…

Q: Copper exist in 2 naturally occuring isotopes the average atomic weight of copper is 63.546 amu if…

A:

Q: Neutrons: O Have a relative mass of 1 and a charge of +1 O Have a relative mass of 0 and a charge of…

A: A neutron is a sub-atomic particle with no net electrostatic charge, with a very similar mass to a…

Q: Write a isotope symbol for An atom with 66 neutrons and a mass number of 116

A: Isotopes are the species that differ to each other in number of neutrons they possess, but have same…

Q: Determine the number of neutrons in each isotope: (a) carbon-14; (b) 81Br.

A: The number of neutrons present in each isotope has to be given.

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: 19. An atom of phosphorus has an atomic number of 15 and a mass number of 31. How many neutrons does…

A: Atomic number = 15  Mass number = 31  Neutron = mass number - atomic number  Neutron = 31-15…

Q: 39.) In the gold foil experiment, Rutherford used alpha particles He2+ (mass number 4) to bombard a…

A: An alpha particle is a radioactive particle that is made up of two protons and two neutrons. It is a…

Q: 3. Fill in the blanks. Add any missing symbols and'or numbers to the ateomic symbol. (Assume all…

A:

Q: Which of the following statements concerning an 131I atom and a 131Xe atom is / are CORRECT? (1)…

A:

Q: Fill in the table. Element Number of Protons Number of Neutrons Number of Electrons Mass Number…

A: Fill in the blanks--

Q: Which of the following element has the isotope with 21 neutrons and mass number of 40?(1) Argon(2)…

A: Number of protons can be determined by subtracting number of neutrons from the mass number of an…

Q: Silver has an atomic mass of 107.868 amu. The Ag-109 isotope (108.91 amu) is 48.16%. What is the…

A: Answer : The correct option is (B)  106.91 amu    Given : Atomic mass of silver     = 107.868 amu…

Q: Give the number of protons, neutrons, and electrons for 240u+6 protons neutrons electrons

A: Calculate number of electron, proton and  neutron in 240U+6 ?

Q: How many neutrons are in CI-37? O 17 O 37 O35.35 O 20

A: To calculate the number of neutrons, use the formula given as follows:- Z+N = A where A = Atomic…

Q: 31. Isotopes of an element have the same number of (1), and different number of _(2). A. neutrons…

A:

Q: Which of the following atoms has the same number of neutrons as ⁵⁹Ni? A) ⁵⁷Co B) ⁵⁸Fe C)…

A: The following atoms that has the same number of neutrons as ⁵⁹Ni are to be determined - A) ⁵⁷Co B)…

Q: Carbon-14 is commonly used in radiometric dating to determine the age of fossils. The atomic number…

A: for a carbon-14 atom, atomic number = number of protons = 6

Q: 4.82 For each of the following, write the symbol and name for X and the number of protons and…

A:

Q: Use the following information to identily the atom or on Mass number 32 Protons Neutrons lectrons 18…

A: The details solution for this is provided below in attach image.

Q: Determine the number of protons and the number of neutronsin each isotope.a. 14/7N b. 23/11Na c.…

A: Concept Introduction: An element consists of same type of atoms. An atom is composed of certain…

Q: Which one of the following has as many electrons as it has neutrons? A) 19F B) 40C22+ C) 14C4- D}…

A: To find: Isotope which has the same number of electrons as the number of neutrons in it.

Q: Atomic Number Mass Number Atom Symbol Protons Neutrons Fr 87 223 Tungsten 110 238 86 136 57 44

A:

Q: A certain element consists of two stable isotopes. The first has a mass of 113 amu and a percent…

A: To find out the mass of the element, multiply both mass of isotopes and their natural abundance. You…

Q: What is the atomic mass of Cadmium ? A) 12.011 amu B) 40.078 amu C) 132.91 amu  D) 112.42 amu

A: Given atom,        Cadmium (Cd)

Q: 13) How many neutrons are in carbon-12 ? A) 7 B) 8 C) 6 14) Identify the chalcogen that has 18…

A: " Since you have posted a question with multiple sub-parts , we will solve first three sub-parts…

Q: this page. Element Nuclear Atomic Symbol Mass Number Number Symbol Protons Neutrons Electrons 107 47…

A: Given, The nuclear symbol = 10747Ag The mass number of Fe (Iron) = 59 The no. of elctrons Fe (Iron)…

Q: Gallium has an atomic mass of 69.723 amu. The Ga-69 (68.926 amu) is 60.11%. What is the amu of the…

A:

Q: Number of... Atomic Mass Isotope Name Isotope Symbol Protons Neutrons Electrons Number Number…

A: Atomic number: The atomic number of a chemical element is the number of protons found in the nucleus…

Q: Atoms of isotopes of the same element are identical in which of the following aspects? A Mass number…

A: Atoms of isotopes of the same element are identical in atomic no but different mass no . Atomic no…

Q: Sodium (Na) atomic number, (11) and mass number (23) ,the number of :neutrons in its nucleus is 34 O…

A:

Q: C. Platinum can be found in nature as the following six occurring isotopes : platinum-194, which…

A: Mass number is the total number of neutrons or protons in an atomic nucleus.

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.