Lithium occurs naturally as 6-Li and 7-Li. Which isotope is more abundant? a)lithium 5 b)lithium 6 c)lithium 7 none of the above

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: Potassium naturally consists of 93.10% K-39 and 6.9% K-41. Calculate the atomic mass for Potassium.

A: Given that, % abundance of K-39 = 93.10 % = 0.9310  % abundance of K-41= 6.9 % = 0.069  Then,

Q: Explain how it is possible for one element to have a higher atomic number than another and yet have…

A: Atomic mass of any element is actually its average atomic mass which is calculated by the addition…

Q: 13. Two atoms that are different isotopes of the same element have (1) the same number of protons…

A: To complete the below statement. Statement: Two atoms that are different isotopes of the same…

Q: Activity 3- Fill in the Table Can you do it for carbon isotopes: carbon-12, carbon13 ai has an…

A: Isotopes are elements having same atomic number and different mass number  For example  Hydrogen has…

Q: The explosion of an atomic bomb in the atmosphere releases many radioactive isotopes into the…

A: The explosion of atomic bomb occurs as a result of rapid release of energy from a high speed nuclear…

Q: 1. How many calories are released when 100. g of steam condenses? The heat of condensation for water…

A: Given: Mass of water = 100 g The heat of condensation for water = 540 Cal/g

Q: Ammonia is a gas with a characteristic pungent odor. It is sold as a water solution used in…

A: The atomic mass of N relative to H in a sample of of ammonia contains 7.933 g N and 1.712 g H, it is…

Q: Abundance (%) Abundance Number of Protons Number of Neutrons Mass (amu) (decimal) Name of isotope…

A: Neodymium is a actinide element having atomic number 60. So this element can be represented as-…

Q: halogens TAL LE IA 12A Be Na Mg Kla Rb Sr |S Ba Fr Ra -| :0 KCI Br At

A: Chemical reactions occur when there is any chemical change. They are written in the form of chemical…

Q: f you look at Gallium's atomic mass on the periodic table, which isotope is more abundant in nature:…

A: Gallium belongs to IIIA group in the periodic table. There are two isotopes of Gallium that occurs…

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: Only two isotopes of copper occur naturally, 63Cu (atomic mass = 62.9296 amu; abundance 69.17%) and…

A: It is given that :Atomic mass of 63 Cu = 62.9296 amuNatural abundance of 63 Cu = 69.17 %Atomic mass…

Q: what is the atomic number for 37Cl with a charge -1

A: Given that, Cl-37 Charge = -1

Q: isotopes

A:

Q: Which of the following statements best describes the role of neutrons in the nucleus? The neutrons…

A: The atom is smallest particle of any element that exists. The atom itself is composed of three…

Q: How to calculate the relative atomic mass (6.015122) of 6Li, from the atomic mass of Lithium?

A: As we know,  Relative atomic mass = atomic mass of an atom / 1 amu

Q: Ammonia is a gas with a characteristic pungent odor. It is sold as a water solution for use in…

A: Given information,

Q: Which element is a halogen? (a) Ne (b) O (c) Ca (d) I

A: The substances that have a tendency to occupy space are considered as matters. The matters can be…

Q: Boron exist as 2 stable isotopes in nature. Isotopic mass (in amu) and the percent abundance data…

A: According to our policy we should solve one question (If any subpart present then first three…

Q: Two isotopes of boron are found in nature: 10B has a mass of 10.01 amu, and 11Bhas a mass of 11.01…

A: Given: The atomic mass of 10B, an isotope of boron, is 10.01 amu. The atomic mass of 11B is 11.01…

Q: What element is defined by the following information?    p+=20  n ^o=20   e^-= 20

A:

Q: One isotope has an atomic weight of 408.5 atm and a percent abundance of 23.0% while the other…

A: To calculate the atomic weight of the element, multiple the percent abundance with respective weight…

Q: An atom of rhodium (RhRh) has a diameter of about  2.7×10−8cm2.7×10−8cm. How many RhRh atoms would…

A: Given : Diameter of Rh atom = 2.7 X 10-8 cm And the distance to be covered = 6.0 μm = 6.0 X 10-4 cm…

Q: 16) What's the atomic number of sulfur-34 ? A) 34 B) 18 C) 16 17) In the formula of hydroxylapatite…

A: According to our guidelines we can answer only three subparts

Q: An atom of 131 I contains ________ protons.

A: An atom = 131I  Number of protons = ?

Q: 4. A naturally occurring element X exists in three isotopic forms on the third planet of the Alpha…

A: Formula to calculate atomic mass from natural Abundance is :-  Atomic mass = ∑atomic mass × natural…

Q: Boron occurs naturally as 10B and 11B. Which isotope is most abundant? (Refer to the Periodic…

A: The isotopes can be described as the types of the species which have equivalent atomic number…

Q: Which element does not belong with the other four? 8O 18Ar 17C l7N 53I A) O B) Ar C) Cl D) N…

A: The element  that does not belong with the other four is given below

Q: 1. A car is moving with a velocity of 65 km/hr. How many miles would it travel in 35 sec. (1 mile…

A: Mathematical calculation is shown below

Q: A general formula of nucleus is given as AZX2+; here A is mass number, and Z is atomic number.…

A: The protons and neutrons in the nucleus of an atom are called as nucleons. Protons are positively…

Q: The element gallium has two naturally occurring isotopes, gallium-69 (68.9256 amu) and gallium-71…

A: Given , two isotopes of gallium (Ga) are 69Ga = 68.9256 amu 71Ga = 70.9247 amu  Let, % abundance of…

Q: 8. Use isotope notation to show a. chromium-54 b. strontium-84

A: Isotopes can be defined as the variants of chemical elements that possess the same number of protons…

Q: 8. Complete the following table with the appropriate data for each isotope given (all are neutral…

A:

Q: Which one of the following species has a many electrons as it has neutrons? Select one: а. 14с b.…

A: In the nuclide symbol of an atom, Z-represents the atomic number which is number of protons present…

Q: The fictitious element concordium (Cn) has two naturally occurring isotopes: 65C (64.8913 u) and 69C…

A: The solution is as follows :

Q: Rubidium has two naturally occurring isotopes: 85Rb and 87Rb. The natural abundance of 85Rb is…

A: Given,  Rubidium has two naturally occurring isotopes : 85Rb and 87Rb Relative abundance of 85Rb =…

Q: Gold is very malleable which means it can be pounded into very thin sheets. Decorative gold leaf can…

A: The Diameter of the gold atom = 1.4 x 10-10 m The thickness of the gold sheet = 0.10 µm =0.10 x 10-6…

Q: MASS # ATOMIC # ISOTOPE NOTATION # OF N ВOHR NOTATION ELECTRON DOT 2-8-7 2-6 10

A: The question is based on the concept of atomic properties. we have been given bohr notation or…

Q: 2. (a) Determine the mass number of a nucleus whose radius is approximately equal to two-thirds the…

A: Radius of new element is two third of the radius of Ra-230. Here, we have to find the name of new…

Q: A certain isotope X3+ contains 25 electrons and 40 neutrons.  What is the mass number for this…

A: Here, given #electron=25  #neutron=40 #proton=?   Mass number is the sum of protons and neutrons.…

Q: In the following figure below, what is the'number of neutron, proton, electron, atomic number, mass…

A: Atomic number is defined as the number of protons or number of electrons present in an atom while…

Q: Many hospitals use radioisotopes for diagnosis and treatment or in palliative care three…

A: 1. Iodine-131 decay: Iodine-131 has half life period of 8.06 days and it undergoes beta minus decay…

Q: 8.How many protons, neutrons and electrons are present in" Sn 119 2+

A: In an element, atomic number of element is equal to number of protons.  While in neutral element…

Q: Boron consists mainly of 19.9% boron-10 and 80.1% boron-11. What is the average atomic mass (amu) of…

A: The average Atomic Mass of Boron is given by -

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: 11. Which best describes isotopes? a. Same number of neutrons, different number of electrons b. Same…

A: Isotope having same atomic number but different mass number.  metal loose electrons and form cation…

Q: 165 21. Identify the neutron-to-proton ratio for the isotope 67H0 and determine if the isotope is…

A: Identify the neutron-to-proton ratio in the given nuclide--