What is the atomic number of the transition metal Gold (Au)?

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: List some Isotopes of Carbon?

A: Isotopes are the compounds which have same atomic number(Z) or we can say that they have same number…

Q: In the following diagram, blue spheres represent the element A and yellow represent the element

A:

Q: Whar principle in constructing the periodic table used the atomic number as basis rather than the…

A: The study of elements and their compounds can be made easy by a systematic classification of…

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: Two isotopes of rubidium occur naturally, Rb-85 at 72.17% (84.91 amu) and Rb-87 at 27.83% (86.91…

A: Given, two isotopes of rubidium as follows,Rb-85 at 72.17% (84.91 amu) and Rb-87 at 27.83% (86.91…

Q: Question attached

A: Ans: Rb-85 = 72.17% = 0.7217 * 84.91 amu = 61.2795 Rb-87 = 27.83% = 0.2783 * 86.91 amu = 24.1871

Q: How did they describe atoms in around 450BC?

A: Democritus was the first person to give the concept of the existence of an 'atom'. He was a Greek…

Q: How many isotopes of chlorine exist in nature?

A: The element chlorine has two isotopes, chlorine–35 and chlorine–37.

Q: Copper has two natural isotopes: Cu63 and Cu-65. Which isotope is more abundant? (Hint: Refer to the…

A:

Q: What is period in a periodic table?

A: Metals, non metals and semi-metals are placed in the periodic table according to their properties.…

Q: What is the atomic mass of silver

A: Silver is a chemical compound with the formula Ag (from Latin argentum, and atomic number 47). It is…

Q: Out of the atomic number, atomic mass number, atomic weight, isotopes which one of these are unique…

A: Atomic number = It is equal to the number of protons present in the nucleus of an atom.Atomic weight…

Q: What is the atomic number of magnesium? How many

A: Magnesium :- Atomic No.  = 12 No. of Proton = 12

Q: What is Joseph Proust contribution atomic theory?

A: He first published his Law of Definite Proportions (or Law of Constant Composition). The essence of…

Q: How many neutrons are in the nucleus of an atom with an atomic number of 25? (use Periodic Table for…

A: Number of protons = atomic number   Number of electrons = atomic number (in case of neutral atom)…

Q: What is the periodic table

A: The elements are the simplest chemical species, which has same number of protons in the atomic…

Q: Copper, which has an average atomic mass of 63.546 amu, has two stable isotopes: copper-63 and…

A: Given,Atomic mass of Copper-63 = 63.546 amuAbundance of Copper-63= 69.15%

Q: 1. To convert 20g of ice at -5oC to 120oC to steam you need __________ cal of energy? Assume…

A: “Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: Which atom has the largest number of neutron

A: Since no options are provided, it is assumed that the largest number of neutrons in an atom in the…

Q: If the cube with the same mass as part A is made of iron, determine the edge length of this cube (in…

A:

Q: For the following questions determine the percent abundance of each isotope. The periodic table is…

A: Given Two isotope Oxygen - 16(smaller isotope)      Atomic mass = 16Oxygen - 18(larger isotope)…

Q: What is the difference between atomic number and atomic weight?

A: The atomic number corresponds to the number of protons present in an atom. It is represented by Z.…

Q: The total number of atoms in 2FrCN

A: Total Number .of atom represents  Number of sum of all the element present in a given Compound .

Q: What is atom

A: The atom is the smallest unit of matter that is composed of three sub-atomic particles: the proton,…

Q: 2. Describe cathode ray tube experiment by drawing its diagram.

A:

Q: Electron- Proton- Atomic number- Atomic mass- Neutron- Nucleus- C. Isotopes or Different Elements?

A: A typical atom is made up of subatomic particles that include electrons, protons, and neutrons.…

Q: Which group of three elements contains a transition metal, a halogen, and noble gas? a) S, I, Cu b)…

A: Since the Halogen elements are F, Cl, Br, I, At And noble gases are He, Ne, Ar, Kr, Xe, Rn

Q: Element: Magnesium Number of Number of Abundance Abundance Name of isotope Mass (amu) Protons…

A: Since you have posted multiple questions with multiple sub-parts, we are entitled to answer the…

Q: an isotope that has the atomic number 53, atomic mass 127 and a charge of "-1" determine the number…

A: Elements have same atomic number but different mass number is known as Isotopes

Q: What is the chemical element? X

A: Here we have asked about the information for the chemical element 'X'. We can tell about this as…

Q: What does the atomic structure or the atomic number tell us about the identity of an element?

A: We have to tell what does the atomic structure or the atomic number tell us about the identity of an…

Q: What is an element?How are elements arranged in the periodic table?

A: The elements starting from hydrogen having atomic number 1 to the element with atomic number 118 are…

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: Describe what is atomic

A: The definition of atomic has to be given,

Q: Copper, which has an average atomic mass of 63.546 amu, has two stable isotopes: copper-63 and…

A: Atomic mass of copper can be calculated using the following formula.

Q: An isotope of xenon has an atomic number of 54 and contains 77 neutrons. What is the xenon isotope’s…

A:

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: Elements in the same period (row) have the Same number of what?

A:

Q: The element sulfur has an atomic number of 16 and an atomic mass of 32. How many neutrons are in the…

A: Atom consist of nucleus at its center and electrons revolve around the nucleus. Nucleus contains…

Q: what is atomic mass? how is it computed

A: what is atomic mass? how is it computed?

Q: Which pair correctly matches an element to its atomic number? O a) 9.012 - Be O b) 12.01 - C c)…

A: The atomic number of an element is equal to the total number of protons in the nucleus of the…

Q: 32p is an isotope of phosphorus that is frequently used in Biology labs. It has a mass number of 32.…

A: The given isotope is 32P.  The mass number of 32P, A = 32  Atomic number of 32P, Z = 15

Q: Atomic Number Atomic Mass = : # of Protons : # of Protons + # of neutrons :: #of electrons : #of…

A:

Q: A certain ion X3+ contains 21 electrons and 29 neutrons Identify an ion? what is the mass number…

A: Ions are formed, when an atom gains or loses its electrons, so the ions do not have the equal number…

Q: The average atomic mass of Ga is 69.72. Naturally occurring Ga is composed of Ga-69, which has an…

A:

Q: What is the relationship between an isotope’s abundance in nature and an element’s atomic mass…

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

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.