When J. J. Thomson discovered the electron, what physical property of the electron did he measure? Its charge Its charge-to-mass ratio Its temperature Its mass Its atomic number

Q: 1. A scientist collects data on a sample of Lithium. He determines that 92.3% of the sample is…

A: The atomic mass of lithium = 6.938923 amu

Q: Explain the important distinctions between eachpair of terms:(a) cathode rays and X-rays(b) protons…

A: Hi, since you have posted questions with multiple subparts. We will answer the first three subparts…

Q: The element silver has both physical and chemical properties, some of which do not change when the…

A: When the size of sample changes , all the properties changes except the density of sample. Density…

Q: The diameter of a US penny is 19 mm. The diameter of a silver atom, by comparison, is only 2.88 Å.…

A: The diameter of one silver atom in the units of mm is calculated as follows:

Q: How many electrons make up 0.75 coulomb of charge?

A: The charge of electrons is quantized. The charge on one electron is given by: charge on one electron…

Q: Naturally occurring chlorine (Cl) consists of two isotopes. One of the isotopes has a mass of 34.969…

A: Isotopes have same atomic number but different atomic mass or mass number. Atomic number is equal to…

Q: Oxygen is a _______ and therefore _______ when it forms an ion   A. nonmetal;       loses…

A: Oxygen is a nonmetal element.

Q: What is the charge of an ion that contains 21 protons and 19 electrons?

A: For any neutral atom, the number of electrons present in the atomic shells is equal to the number of…

Q: 1. atom 2. mass number atomic 3. nucleus atomic 4. number 5. compound 6. electron 7. element 8. mass…

A: The branch of chemistry can be defined as the study of matter, which is termed as anything that…

Q: How does Chemistry provide a background for understanding the properties of matter in terms of…

A: To explain the structure of atoms, avrious philosphers and scisnitists proposed a number of theories…

Q: Use Rutherford's gold-foil experiment to answer each of the following: How did the results differ…

A: Rutherford experiment He made to strike fast moving alpha particles with the gold foil. He expected…

Q: Variations in average atomic mass may be observed for elements obtained from different sources.…

A: Given information: Assuming Mass of boron sourced from turkey = 10.0129 amu Mass of boron obtained…

Q: A certain ion X-1 contains 18 electrons and 17 neutrons. Identify the element X. What is the mass…

A: Given information: Number of electrons and neutrons in  X-1 = 18 electrons and 17 neutrons

Q: Fluorine has an atomic weight of 19 an atomic number of 9. How many electrons are in an ion with a…

A:

Q: Imagine that you were working in the lab at Amgen (a biotech compan Thousand Oaks) and you discover…

A: Isotopes of elements contains same number of protons but different number of neutrons.

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

A: Given,First isotope:Copper atomic mass = 62.9296amu.Abundance = 69.17% = 0.6917.Second…

Q: Suppose the diameter of a type of atom is 2.22 x 10-7 mm. A coin has diameter 1.20 cm. Suppose the…

A: If we divide the diameter of a coin by the diameter of an atom we will get the no. of atoms.  Given…

Q: Write FLuorine, carbon and hydrogen's chemical symbol and write down its atomic number and mass…

A:

Q: Chemists in the 19th century constructed an evacuated glass tube with wires inserted in both ends.…

A: Chemists in the 19th century constructed an evacuated glass tube with wires inserted in both ends.…

Q: Use triangles to represent atoms of element A and circles to represent atoms of element B. Draw an…

A:

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: Describe the structure of the atom, including the locations of the subatomic particles.

A: The atomic structure means that how and where  the sub-atomic particles are arranged inside the…

Q: Approximately how many elements are listed in the periodic table? How many can be found in nature?…

A: Periodic table of elements is arrangement of elements in tabulated form. In this, the elements are…

Q: Differentiate between an atom, an element, and a molecule.

A: Element - are naturally occurring species  Atom-building block of molecule  Molecule - made up of…

Q: Page |99 SUBATOMIC PARTICLES AND ISOTOPES Complete Symbol Atomic Mass Number of Number of Number of…

A:

Q: 1. What is the name of John Dalton's theory? 2. What are elements made of? 3. An atom of hydrogen…

A: As you have posted a question with multiple parts, we will solve the first three parts for you. To…

Q: When trying to identify an unknown element, a scientist determines what other elements the unknown…

A: To identify the unknown elements, its chemical properties should be studied.  Chemical properties…

Q: Which atomic particles are electrically charged? (a) electrons and neutrons (b) neutrons and protons…

A: Given, Which atomic particles are electrically charged?(a) electrons and neutrons(b) neutrons and…

Q: Naturally occurring silicon consists of three isotopes with the following isotopic masses and…

A: using the formula of average atomic mass Average atomic mass= ∑isotope given value ×abundance /100…

Q: Two different atoms have six protons each and the same mass. However, one has a negative charge…

A: SUBATOMIC PARTICLES: The particles are tiny particles that are present inside the atom. They are…

Q: Determine the number of subatomic particles of an atom given its mass number and

A: Either one of the thing is given atomic mass/ atomic no/ no of electron/proton/neutron or  name or…

Q: Metals (in its ionic state) if heated will radiate light, this is because of the reaction of:  a.…

A: Metals are good conductors of heat and electricity. This is because of transfer of electrons from…

Q: A certain element XX has four isotopes. 5.845% of XX has a mass of 53.93961amuamu.…

A: Average mass of an element is defined as the atomic mass of the element calculated by multiplying…

Q: The element chlorine has two naturally occurring isotopes. The isotopic masses and abundances of…

A: Recall the following expression to calculate average atomic mass of chlorine average atomic…

Q: The net charge on an atom of a given element changes as ______ are added or removed. A) neutrons B)…

A: The net charge on an atom of a given element changes as ______ are added or removed.

Q: An ion has 34 protons and a charge of 2-. How many electrons does this ion have

A: Given: Number of protons = 34. And charge on ion = -2.

Q: An ion has 28 protons, 24 electrons, and 30 neutrons. What is its ionic charge?

A:

Q: Describe the structure of an atom. What are atoms composed of and how are the individual parts of an…

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: mass

A: This question is related to atomic mass.

Q: 1. What is a rule for making a neutral atom which has no charge? 2. What is a rule for making a…

A:

Q: How many electrons are necessary to produce a charge of -1.0 C? What is the mass of this many…

A: SOLUTION: Step 1: An electron has a charge of -1.6 ×10-19 C. The no of electrons necessary to…

Q: Variations in average atomic mass may be observed for elements obtained from different sources.…

A:

Q: 1. Given the data in table shown below, calculate the atomic mass of unknown element X. Then,…

A: The average atomic mass of element is equal to the product of the masses of the isotope and its…

Q: On another planet, the isotopes of titanium have the given natural abundances. Mass (u) Isotope 46TI…

A: The data given about the isotopes of the titanium with the natural abundances: The abundance of…

Q: How many atoms are contained in a titanium sphere having a diameter of 12.0 mm? The density of…

A:

Q: 15. The roots of the plants absorb the nutrients from the soil. For the farmers, it is important to…

A: Here we are required to find the best fertilizer which a farmer can used for the plants

Q: An element´s relative mass, expressed in atomic mass units on the periodic table, is equal to its…

A: The mass of an atom can be expressed in different forms like molar mass,  relative mass, atomic mass…

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.