The father of the Periodic Table of Elements is:  a. Cavendish b. Charles c. Mendeleev d. Lavoisier *Choose only one answer

Q: What were the drawbacks in Bohr atomic model how Sommerfeld extended Bohr model to explained…

A: Drawbacks of Bohr atomic model  1. This model works only for hydrogen like atom that contain only…

Q: Refer to the periodic table and determine the atomic number and atomic mass for sulfur.

A: Sulfur is the gaseous element. It is the member of Chalcogen (Oxygen) family. And, it lies in Group…

Q: How do you get the number of p+ of a neutral atom given the number of e- and A?

A: An atom of an element is represented in terms of A and Z. A means mass number and Z means atomic…

Q: The diagram below depicts a lithium atom with three protons and four electrons. Calculate the charge…

A: Lithium belongs to group 1. The atomic number of Li is 3 and it's electronic configuration is 2,1.

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: If you change the number of __________ , the atom becomes a different element.

A: If we change the number of Protons, the atom becomes a different element.

Q: mass number for the calcium isotope with 22 neutrons

A:

Q: draw the Part I: Using Electronic Configuration, Atomic Structure in Planetary Model (Neil Bohr's…

A:

Q: properties from left to right. However, the pattern of properties within a period repeats as you…

A: In this question, we have to explain what does periodic law state and mean.

Q: What is the number of electrons of the given element?

A:

Q: Compare and contrast an atomic orbit and an atomic orbital. Identify each of the atomic models that…

A: Atomic orbit is the fixed path around the nucleus where the electrons revolve.  Atomic orbital is…

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: 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: 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: How was the arrangement of periodic table developed?

A: As the number of known elements increased, their information about the elements starts increasing.…

Q: Using the periodic table, enter the electron configuration of N.

A: Here we are asked to write the the electronic configuration of Nitrogen.

Q: Part A What is the atomic number of the element located in group 16, period 2 of the periodic table?…

A:

Q: What is the atomic mass of chromium Answer:

A: The given element is Chromium.

Q: Draw the abbreviated orbital diagram for selenium (Se). How many valence electrons are in an atom of…

A: Abbreviated orbital diagram : Abbreviated orbital diagram pictorially represents the arrangement of…

Q: atomic number for the calcium isotope with 22 neutrons Express your answer as an integer.

A: Isotope : Element with same atomic no. but having different no. of neutrons.

Q: Please write the basic ideas of the following ionization models. a) Ion-Sphere model b) Stewart-Pyat…

A: BASIC IDEAS OF FOLLOWING MODELS :

Q: Usefulness and limitation of periodic table?

A: Interpretation: Uses and limitations of periodic table are to be provided.

Q: The predicted charge for O is (+ and signs are required): This mean: that O (gained or lost, and how…

A: Electronic configuration of O : 1s2 2s2 2p4

Q: mass number for the chromium isotope with 29 neutrons Express your answer as an integer.

A: Naturally occurring chromium consists of the following four isotopes: 50Cr, 52Cr, 53Cr and 54Cr. The…

Q: Most elements are classified as _______ and can be found in the lower-left and middle portions of…

A: Periodic table is the tabular arrangement of elements in certain rows(periods) and columns(groups).…

Q: Describe the electron configuration of an atom using principal energy level, sublevels, orbitals,…

A: The electonic configuration is written on the basis of the atomic number of an atom. The electronic…

Q: We learned about three different models describing a stable atom. In three to five sentences, answer…

A: Rutherford compare his model to solar system model . Planets moves around sun and in the same way…

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: elements given below is of

A: Melting point depends upon crystal lattice system means if atoms of Element are smaller in size then…

Q: ntribution of James Chadwick to [ Choose ] velopment of the atomic model

A: Atom is made up of very tiny particles which is indestructible says in Dalton's atomic theory .

Q: number of atom: 31. 0 a of

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

Q: when the energy of a wave decreases, the length of the wave length?

A: Wavelength is the distance between two adjacent crest or trough.

Q: Briefly summarize the experiment Rutherford used to develop his model. Use diagrams. Draw a picture…

A: Rutherford directed a beam of alpha particles on a thin foil of gold, and the foil was surrounded by…

Q: atomic number for the chromium isotope with 29 neutrons Express your answer as an integer.

A: Atomic number is equal to the number of protons present in an atom. It is a constant number and does…

Q: He was a tax collector and the one named the term hydrogen and oxygen:  a. Mendeleev b. Cavendish…

A: Interpretation - To explain who named the term hydrogen and oxygen.

Q: Refer to the periodic table to write the electron configuration for iodine (I).

A: Periodic table represents the systematic arrangement of elements in which the properties of these…

Q: What is orbit and orbital

A: An Orbit - It can be defined as a place where electron revolve around the nucleus like K orbit ,L-…

Q: average atomic mass

A:

Q: How are the elements in the periodic table arranged based on their increasing atomic number? please…

A: Interpretation: The elements in the periodic table arranged based on their increasing atomic number.

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: Using the periodic table, enter the electron configuration of V.

A: Vanadium, V, is present in the 5th group of 4th period in the periodic table. The atomic number of…

Q: 14. List the six ideas of John Dalton's model of the atom

A:

Q: 12. Given the elements name and its mass

A: The isotopic symbol in addition to this also known as the nuclear notation allows a very simplistic…

Q: .Reason from a scientific model. Write out a brief paragraph explaining why we see specific colors…

A: To describe the Bohr model of the atom and on the basis of it briefly explain why different colors…

Q: Select the correct answer from each drop-down menu. A molecule of chlorine has atoms of the same…

A: Element : An element is a substance that cannot be broken down into any other substance. Every…

Q: If the eccentricity of an orbit is smaller than one ______.

A: