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

Q: Estimate the optimal number of neutrons for a nucleus containing 70 protons.

A: The neutrons and protons, the contents making the nucleus of an atom determine its stability.…

Q: the isotope of baron with mass number of 10

A: Given : mass number = 10 And element is boron i.e B

Q: Among these numbers, If each atom acquired two more neutrons, what element would each of these be?…

A: There are basically 3 sub-particles present in an atom-  1- electron 2- proton 3- neutron

Q: Complete the following table: Number Number Atomic Mass of of Number of Number Number protons…

A: Atomic number is the number of electrons. Mass number is the sum of number of electrons and number…

Q: Determine the isotope symbol that fits each description. Ag 76 a. 68 neutrons, 47 electrons b. mass…

A: Since you have asked multiple question we will solve the first one for you. If you want answer to a…

Q: 13. Mg has three stable isotopes. Given a sample of Mg with the following m. percent abundances:…

A: Average atomic mass = ?

Q: Name of the Symbol A Numier e Number of Element Neutrons Proèons Becicns 第Zr Ge 器Br N

A: Complete solution is given below in next step

Q: Question attached

A: Ans: Rb-85 = 72.17% = 0.7217 * 84.91 amu = 61.2795 Rb-87 = 27.83% = 0.2783 * 86.91 amu = 24.1871

Q: éach other. Number of... Isotope Name Protons Neutrons Electrons Atomic Number Mass Number Argon-40…

A: NOTE : Since you've posted a question with multiple sub-parts,we'll solve first three sub-parts for…

Q: 38. A helium nucleus has two protons and two neutrons. How many electrons would it take to equal the…

A: The given nucleus is He, number of proton = 2 Number of neutron = 2 Number of electron = 2 The…

Q: For each atom described, list the number of electrons, protons and neutrons. a. Neutral Ne 1910 b.…

A:

Q: Naturally occurring neon exists as three isotopes. 90.51% is Ne-20 with a mass of 19.99 amu, 0.27%…

A:

Q: 37, 37 The actual mass of a 17 atom is 36.9659 amu. Calculate the mass deficiency (amu/atom) for a…

A: Mass defect or deficiency is the difference between the predicted mass and the actual mass of an…

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: Mass of one a mu)             Carbon Type 1                        12.0             Carbon Type 2…

A: The mass of 1 carbon -12 atom = 12 amu. The mass of 1 mole of Carbon = 12 g/mol.

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

A: The question is based on the concept of atomic structure. we have to count the subatomic particles…

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: 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: 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: 5. Some atoms have various medical uses. Fill in the missing information for the atoms in the…

A: Fill the missing information---

Q: How neutrons, are in 8838Sr?a) 50 b) 88 c) 38 d) 126

A:

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: An element from the Periodic Table is shown below. The atomic mass is given. A) Give the Name,…

A: The answer is given as follows

Q: Beta particles are best described as _ ejected at high speeds from a radioactive nucleus. positive…

A: Radioactive decay is the emission of radiation from the unstable nucleus is called radioactivity .…

Q: The actual mass of a 17CI atom is 36.9659 amu. Calculate the mass deficiency (amu/atom) for a 17…

A:

Q: - Rubidium has two naturally occurring isotopes, Rb-85 (rēlat and Rb-87 (relative mass 86.9092 amu).…

A: 35) Average atomic mass can be calculated by multiplying the % abundance of the isotope with…

Q: An atom has a +3 charge a mass # of 42 and 20 neutrons. What is the amount of electrons it has?

A:

Q: 270, How many protons and neutrons are in an atom of 'Db ? Number of protons = Number of neutrons |…

A: Given  Element = 270 Db Number of proton   = ?  Number of neutron = ?

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

A: Fill in the blanks--

Q: an isotope that has the atomic number 53, atomic mass 127 and a charge of "-1" determine the number…

A: Elements have same atomic number but different mass number is known as Isotopes

Q: 25. How many Neutrons are present in Tin (II) ion?

A: Atomic number of an element is equal to the number of electrons and number of protons. Mass number…

Q: Which particle, if lost from the nucleus, changes the atomic mass the greatest?   a. proton   b.…

A: b. alpha particle

Q: An isotope of xenon has an atomic number of 54 and contains 77 neutrons. What is the xenon isotope’s…

A:

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

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

Q: These masses of subatomic particles may be useful for the following question(s). electron 0.00055…

A: Given:: Mass of Cl-37=36.9659 amu mass of proton=1.0073 amu mass of neutron=1.0087 amu mass…

Q: Which subatomic particles are found in the nucleus of an atom of beryllium

A:

Q: 17.A hypothetical element X is found to have an atomic mass of 37.45 amu. Element X has 2 isotopes,…

A: Given that mass of X-37 = 37.24   Let x be the mass of the other isotope  Fractional abundance of…

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: The actual mass of a 17 atom is 36.9659 amu. Calculate the mass deficiency (amu/atom) for a 17Cl…

A: Mass deficiency is the difference between the actual atomic masses of nucleons  and the mass of the…

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: An 18 O atom contains the same number of protons. neutrons, and electrons.

A: Given atom, 8O18

Q: In 2 H, +, number of neutrons are Select one: а. О O b. 2 Ос. О с. 3 O d. 1

A: In this question, we will determine the number of neutrons.  You can see details solution below.

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: 3 b) Using the information provided below for the three isotopes, determine the missing information.…

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

Q: An atom contains 23 protons, 28 neutrons and 26 electrons. The atomic number and mass number for…

A:

Q: NUnilar ext Calcium-39 Gold-197 125 82 +1 Isotope Name (w/mass number) Atomic Number of Number of…

A: Atomic mass of any element is given following expression Atomic mass = Total number of Protons +…

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: Nucleons The term nucleon refers to the particles found in the nucleus of an atom, namely protons…

A:

Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.