C. How to entertain your atom (and make it excited) What is the energy level and the possible sets of quantum numbers for the lowest-energy unoccupied orbital? How much energy would it take to move each of the other electrons in the atom into this empty spot? What wavelengths of light would be able to move each electron into the lowest-energy orbital?

Q: Which of the following is described as a pure substance that consists only of atoms with the same…

A:

Q: Uranium  Atomic mass,Group and Perioid

A: Uranium has symbol U.

Q: How many electrons are in an atom of Te?

A: Tellurium is a 'p' - block element in which the differentiating e- enters into a p - orbital of the…

Q: Why can we say that an atom is mostly empty space?

A: Atoms consists of subatomic particles like electrons , protons and neutrons  Arrangement these…

Q: Which of the following elements is not a metal? • View Available Hint(s) O iron aluminum O sodium O…

A: Introduction : We have to tell which among the following is not a metal .

Q: Atoms of the same element can differ in is called Isotope.

A: Atomic number (Z) is defined as number of protons present in an atom.  In a neutral atom number of…

Q: What makes an atom a positive and a negative ion?

A: Ions are of two types positive and negative ions. Positive ions have a positive charge on them and…

Q: DescribeThomson’s plum-pudding model of the atom?

A: The Plum Pudding Model is given by J.J. Thomson, in 1904. J.J. Thomson had given this Plum- pudding…

Q: List the physical properties of elements?

A: Physical properties of elements are : Physical state Density Boiling point Melting point Specific…

Q: Some isotopes of iodine are radioactive, but others are not. When we speak of two isotopes of an…

A: Isotopes are different forms of a chemical element which have the same atomic number (number of…

Q: what is the total number of neutrons in hydrogen atom?

A: The atomic number of hydrogen is 1, so there is a one number of proton and the number of neutron is…

Q: Changing the number of electrons in an atom changes the atom’s..

A: Atomic Charge

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

A: Atomic number of gold is  79

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: onsider two isotopes.  write the nuclear symbol for both isotopes how do they differe from each…

A: The word isotope consists of two words, iso means same and topo means position. It is defined as the…

Q: State the definition of element.

A: The definition of element has to be given.

Q: What is a atomic number if neutrons and the mads number for a neutral hydrogen atom

A: As we know that Atomic number = number of protons And mass number = number of protons and neutrons

Q: All isotopes of an element have a different number of

A: The atom contains three types of subatomic particles, proton, neutron and electron. The protons and…

Q: fill the following blanks a. At the extreme left side of the periodic table the elements are…

A: Modern periodic table was designed by Henry Moseley based on the modern periodic law which states…

Q: The atomic number, which defines the element is always equal to the total number of

A: Every element is made up of atoms . Atoms consists of electrons , protons and neutrons. These are…

Q: A brief summary indicating Rutherford major contribution to the atomic theory.

A:

Q: An example of an element is chicken noodle soup powerade air inside a balloon lead pipe baking soda…

A: An element is a pure form of substance in which all atoms have same number of proton so here we see…

Q: 42. Find the atomic number (Z) for each element.(a) Si(b) W(c) Ni(d) Rn(e) Sr

A: Find the atomic number (Z) for each element.(a) Si(b) W(c) Ni(d) Rn(e) Sr

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: What is the name of the symbol H?

A: The given symbol H denotes the element Hydrogen.

Q: An element 'A' contains 15 protons, 15 electrons and 16 neutrons. it is |. It becomes when it has 15…

A: The atomic number of an atom is the number of protons present in the atom. For a neutral atom, the…

Q: which of the following is a postulate of the atomic theory

A: The atomic theory is a scientific theory of the nature of matter, which states that matter is…

Q: if the number of electrons is than The overall charge of an atom is the number of protons. B)…

A: Given :

Q: Rutherford's Gold Foil experiment gave evidence that an atom is mostly empty space. a True b…

A:

Q: The element symbol for nickel is

A: Element symbols or chemical symbols are the short forms that are used in chemistry for chemical…

Q: Which subatomic particle identifies an atom as that of a particularelement?

A: The sub- atomic particles are smaller than the atoms and these constitutes to form an atom.…

Q: Write the correct noble has abbreviated notation for an atom of silver.

A: Answer

Q: It atom lose two electrons what charge will it have

A:

Q: what is the mass of an electron?

A: Electron, lightest stable elementary particle known.

Q: It correspond to the number of electrons of electrically neural or complete atom

A: An atom forms an ion when electrons are either added or removed from it. It forms cations…

Q: Are two atom of the same elements identical

A: ANSWER IS

Q: what are atoms

A: The term atom is defined in step two.