Which of the following statements is true? All isotopes of an element. Lütfen birini seçin: a. have the same mass number b. have different numbers of electrons c. have the same chemical properties d. have a different atomic number

Q: A certain element contains one atom of mass 10.013 ufor every four atoms of mass 11.009 u. Compute…

A: Given data contains, Mass of first isotope is 10.013 u. Mass of second isotope is 11.009 u.

Q: Describe John Dalton's atomic theory?

A: Structure of atom is the significant discovery. Different scientists has proposed different…

Q: Rutherford’s gold foil experiment consisted of firing positively charged alpha particles at a thin…

A: Rutherford alpha particle experiment. He observed that when alpha particles are passed through the…

Q: Describe Rutherford’s planetary model of the atom.

A: Rutherford model or Rutherford atomic model or nuclear atom, or the planetary model of atom gives…

Q: In _______, a negatively charged electron is ejected from the unstable nucleus, converting a neutron…

A: Stability of the nucleus is generally influenced by 3 factors- Mass Defect: greater mass defect,…

Q: mass number for the calcium isotope with 22 neutrons

A:

Q: Use the notation to represent a tin ion having the same number of electrons as anatom of the isotope…

A: Isotopes: Those species having same number of electron and proton but different number of neutron.…

Q: Which statement regarding the nucleus of an atom is correct? A. The nucleus contains protons and…

A: Nucleus of any atom consists of three particles : Proton  neutron electron

Q: The number of protons (is, is not) always equal to thenumber of electrons in orbit around the…

A: The symbol of an element is defined as  ZXA Where  A = mass number = Z + N              Z  = Atomic…

Q: Atoms consist of ________ that are positively charged; neu-trons, which carry a ________ charge; and…

A: Given: Atoms consist of ________ that are positively charged; neutrons, which carry a ________…

Q: Use the atom builder interactive to determine whether each nucleus is stable or unstable.

A: For a stable nucleus the ration of numbers of neutrons and number of protons must be 1:1 for…

Q: On a sheet of paper, Illustrate the history of the atom. Indicate the scientist's name, the Time…

A:

Q: In atoms, protons and neutrons are found (a) only in the nucleus. (b) outside the nucleus. (c)…

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

Q: What characteristic is different in each isotope? a) the position in the periodie table of the…

A: Introduction Isotopes are those particular atoms of the same atomic number which are having…

Q: An element has nine protons and 10 neutrons in the neutral atom. (a) How many electrons are present…

A: Given: Number of protons= 9 Number of neutrons = 10 To find: The number of electrons Atomic number…

Q: What most likely explains why the chemical symbol for calcium is? A. The symbol was already used for…

A: Calcium is discovered by Humphry Davy in 1808. It belongs to group 2 of the periodic table with an…

Q: What are the atomic atom and atomic mass number of the carbon isotope here in the picture here?

A: An element is represented by the symbol XZA, where Z is the atomic number and A is the mass number.

Q: How can you calculate the average atomic mass of two isotopes,

A: Average atomic mass: The average atomic mass of an element is the sum of the masses of its isotopes,…

Q: In any atom ,the atomic number is equal to the number of And the number of.

A: Atomic number is a number that can be used to uniquely identify an element. In periodic table atoms…

Q: a. Explain how atoms of different elements differ from one another.b. Explain how atoms of different…

A: a).

Q: How to get atomic mass protons electrons and neutrons? How do cation and anion work?

A: Atom consist of a heavy mass in the center which is known as nucleus. Nucleus contains protons and…

Q: 1) a. Define mass number of an atom with examples. b.what is nucleus and electron of an atom?

A: Mass number is  the sum of the numbers of protons and neutrons present in the nucleus of an atom.

Q: A friend from your general chemistry class claims that the nucleus occupies a large volume in an…

A: The person claims that nucleus occupies a large volume in an atom. Let's see whether the claim is…

Q: the major portion of an atom's mass consist of

A: Atom Consists generally basic three particle-1. Electron,2.Proton 3. Neutron. there are two part-…

Q: Which atom(s) are isotopes? Explain your answer.

A: Isotopes are the types of any element that consists of different numbers of Neutron and similar…

Q: Identify for an atom of 55Mn: element name: _____________ Z, atomic number = ____ A, mass number…

A: The nuclear symbol of the isotope given is 55Mn.

Q: Find the number of protons, electrons, neutrons of and symbol of Tungsten.

A: The number of protons, electrons, neutrons of and symbol of Tungsten has to be given,

Q: Chemistry midterm A neutron has a mass of and a charge of

A: A neutron is a particle present in the nucleus of the atom. It is a neutral particle having 1 unit…

Q: Explain why the atomic mass of an element is an average mass

A:

Q: match it's meaning

A: A . NOBEL GASES--------3 CONTAIN ELEMENTS IN ALL STATE OF MATTER  AT ROOM TEMERATURE C.…

Q: Fill in the blanks:a. Isotopes of an element differ in mass because the atomshave a different number…

A: The complete statements have to be provided.

Q: The difference of a few little protons, neutrons, and electrons can produce a variety of…

A: Atoms are the basic units of matter.  The term "atom" comes from the Greek word and its meaning is…

Q: 24.1% of all isotopes of an element have a mass of 75.23 amu. 48.7% have a mass of 74.61 amu and…

A:

Q: The nucleus of an atom accounts for most of the size and mass of the atom. O very little of the size…

A: According to Dalton's atomic theory, compound is formed by combining elements and it's also based on…

Q: Describe Rutherford’s nuclear theory?

A: Rutherford, in his experiment, directed high energy streams of α-particles from a radioactive source…

Q: Select H, atomic number 1. How many stable Isotopes ofH exist?

A:

Q: what is the A, Z, E, CHARGE, MASS, # OF NUETRONS, PROTONS AND ELECTRONS OF POTASSIUM -40

A: Mass number (A) = number of protons + number of neutrons Atomic number (Z) = number of protons. E =…

Q: Part C An atom has a mass number of 27 and 14 neutrons. What is the atomic number of this atom?…

A: Mass number & Number of neutrons are given.

Q: Describe Rutherford’s model of the atom.

A: To find: The description about the Rutherford's model of the atom

Q: Predict and test the behavior of a particles fired at a plum pudding model atom

A: The "plum pudding" model given by J J Thomson assumes an atom to be a solid positively charged…

Q: why Rutherford's model of an atom was considered to be unstable?

A: Rutherford’s experiment:Rutherford suggested that there is something at the center of the metal…

Q: When was the first theory about the character of the atom developed? O a. some 100 years ago O b.…

A: Atomic theory is a scientific theory of the nature of matter, which states that matter is composed…

Q: Draw a diagram of Rutherford's experiment and describe it. Include a full description of how the…

A: Rutherford uses a gold thin foil and alpha-particles and because of that this model is also known as…

Q: 3. Atomic #= # of and # of Atomic Mass= #.of neutronsD

A: Protons , Neutrons and Electrons are called as sub atomic particles. The reason they are said so…

Q: 1. Consider a neutral atom, the atomic number is equal to (a) mass of neutron (b) number of proton…

A: Atomic number depends on proton number

Q: The proton and the electron have about the same mass. Most of the mass of an atom is due to The…

A:

Q: In Rutherford's gold foil experiment, a very small number of α-particles were deflected, what about…

A: Given  Statement of Rutherfold's gold foil experiment = deflection by small number of alpha particle…

Q: Which part of John Dalton’s theory was disproved by J.J. Thomson’s cathode-ray tube experiments?…

A: To find: Which part of John Dalton’s theory was disproved by J.J. Thomson’s cathode-ray tube…

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.