Determine the nuclear composition (number of protons and neutrons) of the following isotopes. (a) chromium-52 protons neutrons (b) gallium-69 protons neutrons (c) cadmium-114 protons neutrons (d) barium-138 protons neutrons (e) uranium-238 protons neutrons

Q: What is distinctive about isotopes of elements, and why are they important?

A: The atomic number of an element is expressed as the number of protons and it is equal to the number…

Q: Determine the number of protons and neutrons in each of the following isotopes.

A: Number of protons = atomic number  Number of neutrons = mass number - atomic number

Q: The nucleus, the massive center of an atom, contains which two particles?

A: Nucleus is the massive part of any atoms . It contains mostly all the mass any element. Nucleus was…

Q: How many protons, neutrons, and electrons are in an atom of (a) 138Ba, (b) phosphorus-31?

A:

Q: What is isobars and isotopes?

A: Isobars: 1. Isobars are elements with different atomic numbers and the same mass number. 2. Isobars…

Q: Of the three subatomic particles, a(n)  has a charge but negligible mass, whereas a neutron has mass…

A: To find: From the subatomic particles : a) n has a charge but negligible mass b) a neutron has mass…

Q: When does the number of Neutrons vary?

A: An atom consits of the electron,proton and neutron. The atomic mass of the atom depends upon the…

Q: What is the symbol of another isotope of strontium with 51 neutrons?

A: Isotopes of an element have same number of protons with different number of neutrons in the nucleus.…

Q: Magnesium has three naturally occuring isotopes (24Mg, 25Mg and 26Mg) and has an atomic mass of…

A: The abundance of all the isotopes for a given element must add up to 100%. The fractional abundance…

Q: The two naturally occurring isotopes of boron, boron-10 and boron-11, have masses of10.0129370 u and…

A: Atoms that have the equal number of protons but distinct numbers of neutrons are termed as isotopes.…

Q: Discuss the significance of assigning an atomic mass of exactly 12 amu to the carbon-12 isotope.

A: The significance of assigning an atomic mass of exactly 12 amu to the carbon-12 isotope has to be…

Q: the oxygen isotope with 7 neutrons

A:

Q: Uranium exists mainly as two isotopes in nature, possessing mass numbers 235 and 238. Write the full…

A: The atomic number of Uranium is 92. Hence number of protons in both isotopes = atomic number = 92

Q: Isotope name Oxygen-18 Sodium-24 protons 8. 35 55.5 3207 S to 29 neutrons 46 electrons 35 29 26 Fe…

A:

Q: Define and discuss isotopes.

A: Isotopes are atoms that contain same number of protons and different number of neutrons. Isotopes…

Q: What is the number of neutrons in I-131?

A: Given, Element : I-131 Number of neutrons = ? Note: In the modern periodic table, iodine (I) belongs…

Q: What is the mass number (A) of a calcium isotope that has 19 neutrons?

A: Answer :-  The mass number (A) of a Calcium isotope that has 19 neutrons = 39…

Q: Differentiate between an ion and an isotope

A: In order to differentiate between two species it means the difference between the species needs to…

Q: 10. Which of the following choices consists of a pair of isotopes? (A) 14C and 14N (B) 2³Na and…

A: Isotopes are variants of chemical elements which differ only in the number of neutron and…

Q: What is identity of an ion having 32 protons, 30 electrons and 40 neutrons?

A: Given : number of protons = 32 number of electrons = 30  and number of neutrons = 40

Q: What can you say about the number of neutrons in the stable isotopes of fluorine, sodium, aluminum,…

A:

Q: There are two naturally occurring isotopes of B- boron. One has an atomic mass of 10.013 amu and a…

A:

Q: What is the atomic mass of Lithium, if 7.49%  is Li-6 and 92.51% of Li-7?

A: Given, The natural abundance of Li-6 = 7.49 % The natural abundance of Li-7 = 92.51 %   Considering,…

Q: Which statement about subatomic particles are false? Protons and neutrons have charges of the same…

A: Proton, neutron and electrons are the subatomic particles present in an atom.

Q: Copper has 2 stable isotopes, namely Cu-63 and Cu-65. The atomic masses of the said isotopes are…

A:

Q: What data must you know about the isotopes of an element to calculate the atomic mass of the…

A: The elements that have different atomic mass and same atomic number are known as isotopes.

Q: Provide the correct atomic symbol meeting the following conditions. 1. number of proton = 12 2.…

A: Provide the correct Atomic symbol ---

Q: Indicate the isotope having 12 protons, 11 neutrons and 12 electrons.

A: We have to predict the element symbol.

Q: If a sample of gallium contains 1.56×104 atoms of gallium-69 and 1.02×104 atoms of gallium-71, what…

A: Given,1.56×104 atoms of gallium 69.1.02×104 atoms of gallium 71.

Q: An unknown element X has the following isotopes: ²⁵X (80.5% abundant) and ²⁷X (19.5% abundant). What…

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

Q: 2. Copper has two stable isotopes with the following masses and % abundances: Cu-63 (62.93 amu,…

A: Calculation of average masses:       As per our guideline we have to answer first question only.

Q: Which of the following statement concerning the nucleus is NOT true? A) The density of a nucleus…

A: The nucleus is the positively charged center in an atom that contains protons and neutrons. The…

Q: Nuclei with the same number of neutrons but different mass numbers are called isotones. Write the…

A: A nuclear reaction involves the conversion of nucleus with the emission of certain nuclei or small…

Q: Part D an isotope with a mass number of 52 and 28 neutrons Express your answer as an isotope. ΑΣφ ?…

A: Write the symbol of the given isotopes ----

Q: Explain how the isotopes of an element are alike and how they are different.

A: An atom is composed of protons, electrons, and neutrons. The protons and neutrons are present in the…

Q: How many protons and neutrons are in the nucleus of Kr-80?

A:

Q: The atomic mass of rhenium is 186.2. Given that 37.1% of natural rhenium is rhenium-185, what is the…

A: Average atomic mass = ∑i=1n (mass of ith isotope)(% abundance of ith isotope)100 Where "n"…

Q: Determine the number of protons and the number of neutrons in isotope. 1940K

A: For any element, we can represent  it in stand form as XAZ where X resents the symbol of the…

Q: What element has a mass number of 9 and has five neutrons in its nucleus?

A:

Q: Isotope name atomic # mass # # of protons # of neutrons # of electrons thorium-232 thorium-229…

A: Atomic no. = No. Of protons = No. Of electrons No. Of neutrons = mass no. - no. Of protons

Q: Define the terms Neutrons, Protons, and Nucleus?

A: The atom has three fundamental particles known as neutron, proton, and electrons.

Q: potassium has three stable isotopes k-39, k-40 and k-41 but k-40 has a very low natural abundance.…

A: K  has 26 number of possible isotopes from 31K to 57K but among them only three are stable isotopes…

Q: Boron has two naturally occurring isotopes, boron-10 with a mass of 10.0129 amu and boron-11 with a…

A:

Q: When the Number of Neutrons Varies?

A: Atomic number (Z)- the number of protons or electrons present in an atom of element called as atomic…

Q: 13. Determine the number of neutrons for the following isotopes: A) Cr-53 Number of neutrons B) K-37…

A: First find out the atomic number for both elements and using that, find out number of neutrons in…

Q: How many protons are there in the nucleus of Cu-64?

A: Atomic number (Z) is defined as number of protons present in an atom.  In a neutral atom number of…