Which of the following is an isotope of 55Fe2+ 55Mn2+ 55Fe3+ 56Fe2+ 55Ni3+

Q: 1 “Isobars” are isotopes of different elements having the same mass number. Write the isotopic…

A: The two isobars given are  1) K-40 2) Ca-40

Q: Which subatomic particle has a negative (-1) charge?

A: There are total 3 sub-atomic particles which are present in any atom.

Q: Co

A: Isotopes : if two same element have same atomic number but atomic masses are different then we can…

Q: Which of the following contains two species which have the same mass number?   14C, 14N   12C, 13C…

A: The same mass number means the same nucleons.

Q: What is the atomic symbol for isotope barium-131? 131 Ba 58 Ba 131 Ba

A:

Q: How many protons, neutrons and electons are in 31P3-

A: The element  31P3- It is Phosphorus and having atomic number 15 and atomic mass 31.

Q: How many neutrons are present in a 137Ba²+ ion? (a) 81 (b) 83 (c) 56 (d) 58

A: Given that: Element = 137Ba2+Mass number = 137

Q: 13 Al+Hen+ 4X A = 239 Pu +4X→242 Cm + 1 n 94 96 A = ,Z = 235 U → X+135 Cs + 4 n 92 A = 2 Z= Z= ,X =…

A: Given are nuclear reactions.  A is mass number , Mass number is sum of neutrons and protons of the…

Q: If an isotope has 90 protons, how many neutrons are required in order for it to have a stable atomic…

A: Concept-: Isotope: Isotopes are known as members of a family of an element which all have the same…

Q: Which of the following pairs represent isotopes? A) ²⁸Si and ²⁸Si⁴⁺ B) ²⁸Si and ²⁸Al C) ²⁸Si and…

A: Isotopes basically mean the same element having the same number of proton but with the different…

Q: In SEC, analytes are separated based on: Polarity Charge Size Nuclear Spin

A: We need to identify the basics of SEC chromatography. SEC means Size Exclusion Chromatography.

Q: Silver has two isotopes that are common  in nature. Ag - 107 and  Ag - 109. What  makesthese  two…

A: The solution is given below -

Q: Arrange the following atoms by increasing number of neutrons. 134Ba, 134Ce, 134Xe

A: Given:

Q: Which of the following would be an isotope of ¹⁴N

A: The objective of the question is to identify an isotope of Nitrogen-14 (14N).

Q: which particle corresponds to isotope 3? 183Mt, 183W, or 109W

A: Isotopes are atoms that contain same number of protons but different number of neutrons. As a result…

Q: What is the Chemical name of K2Cr2O7, H2Te, Ni3(PO3)2 ,  and HCIO2(aq) ?

A: 1. Chemical Name of K2Cr2O7 : Potassium dichromate It is also called as Potassium bichromate or…

Q: Write the nuclear symbols of the three isotopes of an element with an atomic number of 8 in which…

A: We have to write Atomic symbol for three isotopes of atomic number 8.

Q: What is the name of the compound containing the hypothetical transition element transium, Tr207?

A:

Q: Which of the following describes an atom that is not an isotope of the other two? And why a)14p,…

A: Which of the following describes an atom that is not an isotope of the other two?

Q: Consider two isotopes Fe-54 and Fe-56, write the nuclear symbol for both isotope. How do they differ…

A:

Q: Calculate the atomic mass of silver if silver has 2 naturally occurring isotopes with the following…

A: We have to calculate the atomic mass of Ag.

Q: How many protons and neutrons are present in 118Sn4+?

A:

Q: Consider Cr-54, Fe-54, Fe-58 and Ni-58 , which of this are isobars and which are isotopes

A:

Q: Which isotope has the same number of electrons and neutrons as the anion 19F- 180 19NE 1802- 23 Na…

A: The number of electrons in 19F- is 10  The number of neutrons in 19F- is 10

Q: nucleus  and electrons in each shell for Se-76 and U-235

A:

Q: How many neutrons does the Fe-56 isotope contain? (a) 26 (b) 30 (c) 56 (d) 112

A: An atom contains three sub-atomic particles named as protons, electrons  and neutrons. Protons are…

Q: 18O2- and 20Ne have the same number of   Question 13 options:   protons   electrons   electrons…

A: In neutral atom number of electrons and protons are equal to atomic number.  And mass number is…

Q: Calculate the atomic mass of silver if silver has 2 naturally occurring isotopes with the following…

A: Average Atomic Mass:-Mavg = M1 n1 + M2 n2n1 + M2M1 & M2 are atomic masses of isotopes 1 and 2n1…

Q: Which of the following element isotopes contains the highest number of neutrons? CI-35 O C-37 O S-34…

A: The question is based on the concept of atomic structure. we have to identify which of the given…

Q: Colbalt -61 is used in the medical treatment of cancer. How many neutrons and protons are contained…

A: Given, Cobalt -61 is used in the medical treatment of cancer.we are asked to determine the number of…

Q: Given the following atomic symbol: 41 19 X How many electrons are in this isotope of X?

A: Isotopes - Elements which have same atomic number but different mass number.  For a neutral atom…

Q: Fill in the blanks. Isotope 25Mg2+ has: Number of protons Number of neutrons Number of electrons…

A: Given  Symbol of isotope    = Mg2+24 Number of proton    = ?  Number of neutron  = ?  Number of…

Q: 9 4 Be + 1 1 H -    + 4 2 He what is the missing isotope

A:

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.