2. Nitrogen is made up of two isotopes, N-14 and N-15. Given nitrogen's atomic weight of 14.007, what is the percent abundance of each isotope? W14 = 14.003074 mol N15 15.000108 mol %3D %3D To bundance N 14 = 99.3, % bundance N %3D % bundance N14 = 0.993, % bundance %3D % bundance N 14 = 0.7, % bundance N %3D % bundance N4 = 0.007, % bundance %3D

Q: An unknown element is a mixture of isotopes ¹²⁹X and ¹³²X. The average atomic mass of X is 130.79…

A: The isotope of the unknown element is given as 129X and 132X.  The average atomic mass of X is given…

Q: Lithium has two naturally occurring isotopes, 6Li (isotopic mass = 6.02 amu) and 7Li (isotopic mass…

A:

Q: A sample has 8.63 x 10 atoms of boron. How many moles of boron does this represent? O1.41 .014 O…

A: Given : Number of atoms of boron = 8.63 X 1021 atoms

Q: What number of atoms of nitrogen are present in 3.54 g of each of the following? a. glycine: C2H5…

A: Given, Calculate the number of atoms of Nitrogen are present in 3.54 grams of each of the following:…

Q: An element X occurs as three stable isotopes: X-21, X-22 and X-23. X-21 is 90.48% abundant and X-22…

A: Given : Element X exists as three stable isotopes. The three isotopes are: X-21 X-22 X-23

Q: The mass percent of CO3 in ca(CO3)2 ( atomic mass C= 12, O = 16, Ca = 40) is O 60% O 77.77%) O 50% O…

A: Mass percent can be calculated by the formula given below as; Mass percent=Mass of the…

Q: 3)A pure copper sphere has a radius of 0.935 in. How many copper atoms does the sphere contain? The…

A:

Q: An element has four naturally occurring isotopes. The mass and fractional abundance of each isotope…

A:

Q: Iron exists in nature as a mixture of predominantly three isotopes: ⁵⁴₂₆Fe (53.94 amu), ⁵⁶₂₆Fe…

A: We have to calculate the percentage of rarest of three isotopes.

Q: On another planet, the isotopes of titanium have the given natural abundances. What is the average…

A: Given,The isotopes of titanium on the planet:                Isotope          Abundance…

Q: There are 1.8 x 1024 atoms of chlorine in a sample of magnesium chlorate, Mg(CIO3)2. What mass of Cl…

A: Given: Atoms of chlorine in the sample = 1.8×1024 Molar mass of Cl = 35.5 g/mol

Q: One mole of copper has a mass of 63.5 grams. Approximately how many atoms of copper are present in…

A: Given  Number of mole = 1 mole  Number of atoms of copper = ?

Q: Fill in the blanks for the 1sr image . For the second image it’s filled in which is an example to…

A: Molar mass of the compounds is equal to the sum of the masses of all the elements.

Q: An element X has the following masses and % abundance. 35X  (34.97 amu 75.8%) and 37X ( 36.99amu…

A: Answer :- amu (atomic mass unit) - It is the unit to express the atomic mass.  % abundance - It is…

Q: Argon has the following isotopic abundances: 35.967546 amu 0.3365% 37.962732 amu 0.0632% 39.962383…

A: Given,

Q: None

A: To calculate the average atomic mass of titanium on the given planet, you will use the natural…

Q: Consider the following hypothetical equation.  2 AB3 +  3 C2D --> A2D3 + 6 CB OR 2 A B3 + 3 C2 D…

A: Mass of AB3 = 34.49 grams. Mass of C2D = 38.02 grams  Actual yield of A2D3 = 4.25 grams. Percentage…

Q: Assume magnesium has three major isotopes in nature as shown in the table below. Fill in the missing…

A:

Q: When iridium-192 is used to treat cancer, a small cylindrical piece of 192Ir, a 0.6 mm in diameter…

A: Given,

Q: 5.061 g of a hydrated metal sulfate is heated only 2.472 g of anhydrous metal sulfate remains. What…

A: By heating the water is removed from the molecule . From the weight loss we can calculate the…

Q: A mystery element has two main isotopes of 62.9300amu and 64.928amu. Their percent abundances are…

A: The isotopes are the elements having same atomic number but different mass number.

Q: Calculate the precise mass of each ion to five significant figures. Unless otherwise indicated, use…

A: Given is the isotope of C which has a molar mass of 13 u the molar mass of a most abundant isotope…

Q: CROSOTTODICH Calculate average atomic weight. Calculate the atomic weight for bromine. It has two…

A:

Q: An unknown element is a mixture of isotopes ¹²⁰X and ¹²²X. The average atomic mass of X is 121.47…

A: For an element that exists as a number of isotopes, its atomic mass is calculated by taking an…

Q: 1. Calculate the formula mass of (NH4)3ASO4. A. 417.80 amu B. 193.05 amu C. 165.02 amu D. 156.96 amu…

A: 1. Formula mass of a compound is the sum of the masses of all the atoms present in the compound.

Q: Complete the table below for calculating the molecular weight of the compound silicon dioxide, SiO2.…

A: Atom Atomic Weight   Atoms   Weight in Compound Si 28.08 amu/atom   X 1 atom   =  28.08 amu…

Q: The density of water, H₂O(1), is 1.0 g ml.. How many atoms of oxygen are present in 2.5 L of pure…

A:

Q: Antimony has two naturally occuring isotopes, Sb121 and Sb123. Sb121 has an atomic mass of 120.9038…

A: Given: Weight of isotope Sb121 = 120.9038 u Weight of Isotope Sb 123 = 122.9042 u. Average atomic…

Q: A 0.652 g sample of a compound is found to contain 0.579 g of Cu and 0.0730 g of O. Which of the…

A:

Q: 14. Copper has two isotopes, Cu-63 and Cu-65. The average atomic mass of copper is 64.928 g/mol.…

A: Average atomic mass = 64.928 g/mol  % abundance = ?

Atomic Structure

The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.

Shape of the D Orbital

Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.