Braw a Bohr model of an oxygen atom in the space below. Be sure to place the electrons in the correct orbitals and to fill out the key for the subatomic particles. Key 8 Protons: Neutrons: Electrons: Oxygen 15.9994

Q: the Electron Name: nucleus Date: What is an atom? Everything in the universe is made up of ATOMS…

A: We are to write the missing words from the paragraph about the structure of atoms.

Q: 14. Mass number is equal to the number of protons and electrons for neautral atom. A. True B.…

A: In a neutral atom, Number of protons = number of electrons Atomic number = number of protons

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: ? 1. The mass on the periodic table. a. Atom 2. Region surrounding the nucleus where electrons are…

A: Solution of your question is given below :  Mass number is the mass on the periodic table .  Mass…

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: Atomic #= 15 Mass #-31

A: Atomic number is equal to the number of protons.  Number of neutrons = mass no. - atomic no.…

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

A:

Q: In Rutherford's experiment, most of the positively charged alpha particles escaped from the sheet…

A: Thompson model of atom consisted of positive charge cloud and negative charge inside it. In this…

Q: If an atom has 35 protons in the nucleus,how many electrons will it have orbiting the nucleus?

A: An atom contains three sub-atomic particles. These are protons, neutrons and electrons.

Q: Go Figure What is the charge on the particles that form the beam? Will they beattracted to or…

A: Basic unit of matter is atom. Study of atom was done by many scientists. Each scientist made some…

Q: Briefly describe the contribution to atomic theory made by democratic, Dalton, J.J. Thomson and…

A: John Dalton and other scientist notices that every chemical substance combines and break down their…

Q: An atom has a mass number of 30 and 16 neutrons. What is the atomic number of this aton Express your…

A:

Q: What is the most massive part of an atom? A. Protons B. Nucleus C. Area outside the nucleus D.…

A: We know that an atom contains three subatomic particles - electrons , protons and neutrons.…

Q: Examine the atomic mass starting from H and follow the ribbon up to #118. Find any atomic mass that…

A: A chemical compound consists of two or more different elements which are bonded with each other…

Q: i) Ernest Rutherford discovered a. proton b. electron ...................by thin gold foil…

A:

Q: W+5 how many electrons

A: The symbol of Tungsten is "W" Atomic Number of Tungsten (W) =74

Q: What is correct from multiple choice

A: Dalton’s Atomic Theory: Atoms are the indivisible building blocks of all matter and cannot be…

Q: Q: 01 What were the drawbacks in Bohr atomic model how Sommerfeld extended Bohr model to explained…

A: The explanation is as follows:

Q: atomic theorists

A: Niels Bohr proposed a theory for the hydrogen atom based on quantum theory that energy is…

Q: What is atomic mass and atomic number? Give me example of how to get electrons neurons and protons?

A: Atomic mass (Mass number) is the sum of the number of protons and neutrons inside the nucleus of an…

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: Part A Which subatomic particle(s) are found in the nucleus of the atom? Enter the subatomic…

A:

Q: Why did J.J. Thompson experiments with cathode ray tubes imply about the mass of an electron…

A:

Q: 6. Use a series of diagrams and a few point-form notes to create a flow chart that summarizes the…

A: Answer - Atomic theory has evolved since ancient times. The hypothesis of Greek scholars has become…

Q: 9. What observations in the gold foil experiment made Rutherford conclude that atoms are mostly…

A: 9. The answer is option no. (B) Most alpha particles passed through the gold foil undeflected. 10.…

Q: This physicist gets credit for the initial information about an atom's nucleus: Dalton Thomson…

A: the correct options are:

Q: 9. Which of the following  NOT correctly matched the scientists and their models? Select one: a. J.…

A:

Q: Was Democritus’s proposal of the existence of atoms based on scientific methods or ideas? Explain

A:

Q: Mass #: sum of protons (+) and neutrons Net Charge: difference between # of protons (+) and # of…

A: Given table is represented as follows:

Q: Which of the following  NOT correctly matched the scientists and their models? Select one: a. J. J…

A: We have to choose the correct statement for the following given scientists and their models as…

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: 1Neils Bohr's model of the atom said: (Check all that apply)     positively-charged nucleus us…

A: Neil Bohr said that the electron could move around the nucleus in a specific circular orbits  He…

Q: Compare and contrast the contributions of J. J. Thomson, Ernest Rutherford, and Neils Bohr in a Venn…

A: J.J.Thomson proposed a plum-pudding model which states that atoms have an overall neutral charge.…

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: How was an electric field used to determine the charge of a cathode ray?

A: Cathode rays are also known as an electron beam and they travel in a straight line.

Q: Find the iostope data for 14/7 N Include the datat for the atomic number, Mass Number, Protons,…

A: Atomic number is equal to no of proton and no of electron…

Q: 6. Tungsten is atomic number 74 on the Periodic Table. Supply the indicated information for a…

A: Given,  Atomic number of Tungsten = 74  184W  mass number = 184

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: 1. Which scientist discovered the quantized nature of electrons? а. Bohr d. Planck b. Dalton e.…

A: Electron has quantized nature.

Q: Why Rutherford’s model could not explain the stability of an atom?

A: Models for electrons- J.Thomson in 1897 discovered electron with the help of cathode ray tube…

Q: what is the composed only of carbon,hydrogen, and halogen atoms?

A: The compound having Carbon and hydrogen only is called hydrocarbon. For example, Methane, CH4

Q: d. A sample of potassium atoms is made up of 54% 39K and 46% 41K. Use this information to find the…

A:

Q: How do I calculate the charge on the electron?

A: Charge of electron is determined through Mullikan’s oil drop experiment.

Q: (a) What do you understand by the statement: "the energy of the electrons in an atom is quantized"?…

A: Quantized energy means that the electrons can possess only certain discrete energy values; values…

Q: Based on the bohr model explain the location of the lithium element on the periodic table. Why is it…

A: Answer

Q: 6) Explain the problems with Rutherford's atomic model, explain the reason for Bohr's ideas about…

A: Solution 6) : Rutherford atomic model failed to explain about the stability of electrons in a…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.