Using atomic notation, indicate the isotope having 26 pt, 32 nº, and 26 e-.

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: Isotopes are defined as atoms ofa. the same element with different numbers of protons.b. radioactive…

A: Atoms of the same element have the same number of protons, which is also called the atomic number.

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: Which of the following represents isotopes?   O (mass number 18) and O (mass number 18) O (mass…

A: Isotopes are the chemical element having same atomic number but different atomic masses.  Isobars…

Q: A fictional element Ho has two stable isotopes and an average atomic mass of 18.357 amu. Use the…

A:

Q: What is the atomic mass of oxygen-17 (16.9991 amu) at 0.038%

A: Using the formula We can easily get the answer

Q: Write the symbol of an isotope that has a mass number of 59 and an atomic number of 26.

A: This is the representation of an element whereZ= Atomic numberA=Atomic mass/Mass NumberX=Element…

Q: Silicon has only three stable isotopes. Calculate the atomic mass for silicon given the fact that…

A: Given information, 28Si (mass= 27.98 amu) has an abundance of 92.21% 29Si (mass= 28.98 amu) has an…

Q: Complete the following table Atomic Number Mass number* # of protons # of neutrons # of electrons…

A: In an atom nucleus is present. postively charged particles are protons and negatively charged…

Q: How many protons, neutrons, and electrons are in the following atoms: (a) ²⁸Si; (b) ⁶⁰Ni; (c) ⁸⁵Rb;…

A: Note : As per our guidelines we are supposed to answer first 3 parts .Please resubmit the other…

Q: Define and discuss isotopes.

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

Q: Enter your answer in scientific notation. Be sure to answer all parts.   The radius of a uranium−235…

A: We have to calculate the density of nucleus.

Q: Try to complete the missing information for these three isotopes using only the data provided.

A: an atom consist of subatomic particle electron ,proton and neutron electron are negatively charged…

Q: Complete the following nuelear equations. Determine the mass number( A), atomic number( Z), and…

A:

Q: For the Isotope 8538SrA. What is the atomic number?B. What is the mass number?C. What is the number…

A: a) for 8538Sr  Atomic number = 38  as atomic number is always written in lower left of the element…

Q: Question attached

A: The given isotope is C-15, which means that it has 9 neutrons. All carbon isotopes have the same…

Q: What is the atomic mass of boron-12? A. 13.00335 amu B. 4.00260 amu C. 18.99840 amu D. --…

A: Since boron has atomic number = 5  Hence number of electrons in boron = 5 and to become neutral atom…

Q: An element has an atomic number of 41 and a mass number of 81. Using your determination as to…

A:

Q: number of protons number of neutrons 6ONI number of electrons number of nucleons

A: 60Ni is isotope of Nickel. 60Ni isotope is used for neutrons studies of amorphous metal structures.…

Q: atomic number 119 and mass number of 252  where would this element be placed? What period would it…

A: Ununennium   Ununennium, also known as eka-francium or element 119, is the hypothetical…

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

A: Fill the missing information---

Q: A sample of the nonexistent element mythium consists of 25.59% of an isotope with mass number 580,…

A:

Q: how many isotopes of bromine exist ?

A: Isotopes:The variants of a chemical element, which have same number of protons and differs in number…

Q: Which demonstrates the existence of isotopes? a. 18 Ar and K b. ºC and EN c. 23 Th and 23 Th d. 7Z1…

A: Isotopes : Two or more forms of the same element that contain same atomic number (same number of…

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

A: Provide the correct Atomic symbol ---

Q: In the notation 289 115 Mc, the number 289 is the 3 number of electrons atomic number atomic mass…

A:

Q: Enter your answer in the provided box. The atomic masses of the two stable isotopes of copper,…

A: Average atomic mass is represented by the equation:

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

A:

Q: 13. Which pair represents isotopes? a. He and »He b. seFe and sa:Mn c. Si and suP 14. Which pair…

A: Identify isotopes pair among them --

Q: Describe how the atomic and mass numbers change, with at least one specific example?

A: An atom has a nucleus situated at the center and the electrons are surrounding it. The nucleus has…

Q: How many protons are contained in the isotope: 22 Ne 10

A: Each atom is made up of sub-atomic particles such as the proton, neutron, and electron. For any…

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: Boron has only 2 naturally occuring isotopes. The mass of boron-10 is 10.01294 and the mass of…

A: Given : Mass of boron-10 is 10.01294 amu and boron-11 is 11.00931 amu. Assuming abundance of…

Q: The correct way to write the isotopes 2Na, AI, Kr, 19r in hyphenated form is sodium-24, aluminum-29,…

A: The correct answer about hyphen notations are given below

Q: how to rank the isotopes in order of increasing number of neutrons

A:

Q: Gold has one stable isotope, whichis gold-197, with an atomic mass of 196.97amu. A 14k (14-karat)…

A: Given:   Mass of 14k gold =  5.00-g  Gold percentage  = 58.3%  Other metals        = 41.7% To find:…

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: Select the single best answer. For this pair of elements (F and Se), predict which one has more…

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: Determine the number of protons and the number of neutrons in isotope. 226Ra88

A: 226Ra88 is the isotope of Radon. Now, how to determine number of protons and number of neutrons.…

Q: Negatively charged particles of radiation emitted from the decay of radioactive substances are known…

A: A) Protons : It is one of the fundamental particle of an atom. It is basically  positively charged…

Q: How can isotopes be used to identify the general region of a person’s place of residence?

A: Every organic and inorganic contains certain stable isotopes in different abundance. Isotope…

Q: 2. What is the nuclei or particle in the blank of the condensed form of * 24°Cf ( 15N, 4n)_. [A]…

A: in nuclear reaction Mass number are  conserved. That means  total mass number on reactent side is…

Q: What is the mass of the other isotope of Boron given 11B has a mass of 11.0093 amu and an abundance…

A: Isotopes of boron are 11B and 10B. Average atomic mass=∑mass of isotope×Relative abundance %100 Mass…

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

A: Given: There are three naturally occurring isotope of Neon. Mass of isotope 1 = 19.99 amu. Abundance…

Q: Below are the five atomic models in history. Number them in historical order from 1 to 5. (1 being…

A: The 5 atomic models in history are given. They are to be numbered in historical order from 1 to 5.…

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…

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.