Give the number of protons (p), neutrons (n), and electrons (e) in a) 15N3- b) 40Ca2+ SNER

Q: An unknown element is a mixture of isotopes ¹²⁰X and ¹²²X. The average atomic mass of X is 120.37…

A: 4. Given that,  An element X has two isotopes such as 120X and 122X. Atomic mass of 120X, MX120 =…

Q: What is the mass of 4.50 x 10- Cu atoms? Multiple Choice 7.47 x 10 amu 7.47 x 10 g 4.75 g 63.55 amu

A: Calculation of mass of cu atom:

Q: What is the mass % of carbon in dimethylsulfoxide (C2H;SO)? (C= 12.011 amu, H = 1.008 amu, S =…

A: The % of carbon in dimethylsulfoxide (C2H6SO) is: Atomic masses of C = 12.011 amu, H = 1.008 amu, S…

Q: Solve with complete solution. An isotope of Cobalt (Co, Z=27) is used in radiation therapy for…

A: Given :-  elemental symbol of Cobalt = Co (Z=27)  number of neutrons = 33  To determine :- its…

Q: Silicon, which makes up about 25% of Earth's crust by mass, is used widely in the modern electronics…

A: Average atomic mass- Naturally occurring element exists as mixture isotopes. Isotopes are with…

Q: What is the average mass, in grams, of one Zna Multiple Choice O 1661 x 10 24 O 65.39 amu O 65.39 g…

A: Molar mass of Zn = 65.38 g/mol

Q: GLIO 3) The ratio of isotopic abundance of elements can vary throughout the solar system (Table 1).…

A: Atomic mass of any substance is given by the abundance average mass of its available isotopes.

Q: For heavier nuclei (Z > 40), which of the following describes the relative number of protons and…

A: Heavier nuclei have atomic number greater than 40. We are given the graph of Number of…

Q: One of the most harmful components of nuclear waste is a radioactive isotope of strontium,  90Sr38 ,…

A:

Q: On earth, tin has 10 different stable isotopes. The heaviest, 124 Sn makes up 5.80% of naturally…

A: Given: 1)To determine the no.of atoms of 124Sn present in 27.3g of natural sample. 2) To calculate…

Q: 2. If you have 1.00 grams of N22CO3, how many moles of Na2CO3 is that?

A: Given, mass of Na2 CO3 = 1.0 g Moles of Na2CO3  = ?  Firstly, find Molecular mass of Na2CO3

Q: If an element, El, has two isotopes with the masses and abundances listed below: 72El: 72.1961 amu;…

A: The element that possesses distinct number for neutrons (might be less or more) as compared to its…

Q: . How many protons, neutrons, and electrons are there, respectively, in 69Se2- ?

A: Given    Element = Se   Number of proton , Neutron , electron  = ?

Q: Suppose that one of Millikan’s oil drops has a charge of −4.8×10−19 C.How many excess electrons does…

A: Given,One Millikan’s oil drop has a charge = -4.8 × 10-19 CCharge of an electron = -1.6 × 10-19…

Q: Cesium has 39 known isotopes ranging from mass 112 to 151. If a sample of cesium containing only…

A:

Q: On earth, tin has 10 different stable isotopes. The heaviest, 12Sn makes up 5.80% of naturally…

A:

Q: Thillium has two stable isotopes, T1 203 and T2 205.Knowing that the atomic weight of thillium is…

A:

Q: The radioactive nuclide with the symbol 75Se is used to measure the shape of the pancreas. What is…

A: The atomic number of Se is 34 and the mass number of this radioactive nuclide of Se is 75. Atomic…

Q: QUESTION 7 _C2H4 +_ 02 = _CO2+ _ H2O - When the above equation is balanced using smallest whole…

A:

Q: How many protons are in 60Co2+ ?

A: Given  Symbol of element =  60Co2+ Number of proton  = ?

Q: Radon is a radioactive gas that can cause lung cancer. It has been detected in the basements of some…

A: Rn-220 is an isotope of radon. In the isotopes, the number of protons remain same whereas the number…

Q: Complete the following table. Put the full symbol, e.g. 37^Cl- symbol 605^W^8+ 37^Cl-   protons…

A: To complete the table, symbol 605W8+ 37Cl-   protons     5 neutrons     5 electrons      5…

Q: Which of the following compounds would contain 12 atoms of oxygen? Co(NO3)2 O Alz(HPO4)3 O NazCr207…

A:

Q: 12. Rubidium is a soft, silvery-white metal that has two common isotopes, Rb and "Rb. If the…

A: An atom is composed of three main sub-atomic particles; electrons, neutrons and protons. The atomic…

Q: Nitrogen has two naturally occurring isotopes, N-14 and N-15. Its atomicmass is 14.007. Which…

A: Isotopes are atoms of same elements which have same atomic number but different mass number. There…

Q: Find the number of electron and neutrons in the following:  195Pt+2

A: 195Pt+2 Mass Number = 195  Charge = +2  Number of electrons = ? Number of neutrons = ?

Q: Boron (B;Z=5) has two naturally occurring isotopes. Find the percent abundances of ¹²B and ¹¹B given…

A: The given data contains, B = 10.0129 amu. 11B = 11.0093 amu.

Q: 3.97x1024molecules of NO us what mass

A:

Q: 18. A compound with molecular mass of 74.1 g/mol is found tO contain 64.8% carbon, 13.5% hydrogen,…

A:

Q: https://www.bartleby.com/questions-an Chemistry 2 曲 I x² Find the isotopes of 17 17 3- B

A: Isotope is one which have same number of same proton but mass should be different . Proton is equal…

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

A:

Q: The PHIVOLCS recently reported that Taal volcano emitted 15,500 tons of Sulfur Dioxide (SO2). How…

A:

Q: 3. What is the average atomic mass of hafnium given the following abundance information on its…

A: Average atomic mass can be determined by the equation given below: Avg.atomic mass =…

Q: 4. Complete the following table. Symbol # Protons # Neutrons # Electrons Net Charge 206Pb 31 38 3+…

A: In the given question we have to fill the following table. here, we have to write the electron,…

Q: 1. Nu OH RAH 2H*, H,0´ RH 2. H*, H,0 RT Nu Nu 00 → R^H Nu

A: This is the nucleophilic addition reaction of aldehyde

Q: How many protons and neutrons are in Cl-37? A) 17 protons, 20 neutrons B) 37 protons, 17 neutrons…

A: Cl-37 has atomic number 17 and mass number 37. As we know, atomic number is nothing but number of…

Q: How many protons, neutrons, and electrons, respectively, are in 57Co2+?

A: Given ion,         57Co2+ ion The atomic number of cobalt is 27.

Q: 5. Complete the table below: Symbol 206pb ?Cu²+ # Protons # Neutrons 31 52 39 76 34 # Electrons 54…

A: Mass number = mass of proton + mass of neutron Atomic number= number protons In a atom number of…

Q: Question 3 and 4

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: How many protons and neutrons are in 37Cl?

A: The smallest unit of ordinary matter that makes up a chemical element is an atom. Every solid,…

Q: How many aluminum atoms are there in 3.50 grams of Al₂O₃? (At. Wts.: Al = 27, O =16) a. 4.13 x 10²²…

A: Mass of Al2O3 = 3.50 g Molar mass of Al = 27 g/mol Molar mass of O = 16 g/mol Molar mass of Al2O3 =…

Q: molybdenum Atomic Number 42 Molybdenum has seven isotopes, each with natural abundances between 9 -…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: Calculate the molar mass (M_m) of NaI in grams (calculate 1st the atomic mass, m_at ( you can use…

A: The given compound is NaI (Sodium iodide).

Q: 4. Estimate the mass in whole numbers, of each iso tope. 1 a) Phosphorus - 31 6) carbon - 14 c)…

A: It is asked to estimate th,e mass of the following isotopes. P31,C14,Am241 Atomic mass of bromine…

Q: if the pka1 is 4.80 what is the ka1  if the pka2 is 7.34 what is te ka2

A: Given- pka1= 4.80 pka = 7.34

Q: Mass

A:

Q: For oxygen-18 with a charge of 1, the number of protons ,neutron ,and electrons

A: since you have asked multiple question, as per our company guidelines we are supposed to answer the…

Q: The two naturally occurring isotopes of silver have the following abundances: 107 AG, 51.84%; 109…

A: The mass of 107-Ag is 106.905092 uThe abundance of 107-Ag is 51.84%The abundance of 109-Ag is…