These are held more tightly from left to right across a period, resulting in smaller ions. A. Electrons B. Neutrons C. Protons D. All of the Above

Q: A proton imparts the nucleus of an atom with a___________ charge.

A: An atom is made up of protons, neutrons, and electrons. Protons and neutrons together form the…

Q: Calculate number of protons, neutrons and electrons present in isotopes of 35Chlorine and…

A: Atomic number = Number of protons Atomic mass  = number of protons + number of neutrons. Number of…

Q: Describe John Dalton's atomic theory?

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

Q: How was the overall charge distributed in the plum pudding model?

A: The overall charge is evenly distributed in the plum pudding model.

Q: mass number for the calcium isotope with 22 neutrons

A:

Q: Fill in the blanks. The subatomic particle _____________ lacks a charge and are located in…

A: Subatomic particles are neutron , proton and electron in which electron has -ve charge proton has…

Q: PROPOSE YOUR OWN MODEL OF ATOM AND WHY. WRITE A BRIEF DESCRIPTION OF YOUR PROPOSED MODEL.

A: The atoms are much smaller and can be seen by the electronic microscope and generally it has three…

Q: A sample of magnesium is found to contain 78.70% of 24Mg atoms (mass 23.98 amu), 10.13% of 25Mg…

A: The atomic mass of an element is the average of masses of all the isotopes of that element present…

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

A: Atomic Charge

Q: When an atom gives up an electron and acquires a positive charge, it is called a/ an  _____________.

A: Every atom contains valance electrons in its outer shell. When an atom looses and electron from its…

Q: Define atomic number, mass number, isotope, atomicmass, and mole.

A: Anything that occupy space and has mass is called matter which  is made up of atoms. Atoms are…

Q: How do you know how many electrons and neutrons are in a single element with just knowing the atomic…

A: Although information about atomic number and mass number, both are needed to determine the number of…

Q: For the atom with mass 107.90389 u, determine(a) the numbers of protons, neutrons, and electronsin…

A: The atom with mass of 107.90389 u is 46Pd108. Thus the atomic mass of the element is 108 and atomic…

Q: Critical Thinking : Dalton believed that atoms were indivisible • Thomson and Rutherford helped to…

A: In precipitation reactions, first the reactants are dissolved in an aqueous solution and it forms…

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 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: 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: How is atomic number related to the identity of the atom? What might happen if the relationship…

A: The atomic number denotes  the number of protons in an atom of the element.

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: 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: Write the standard atomic notation for an atom with 20 neutrons, 26 electrons, and 26 protons. Note…

A: This solved by atomic number and atomic weight determination.

Q: A. Atomic number of Terbium B. Mass number of Carbon C. Element with atomic number 113

A: Given, A. Atomic number of Terbium = ? B. Mass number of Carbon = ? C. Element with atomic number…

Q: What if Rutherford believed atoms were as Dalton envisioned them? What do you suppose Rutherford…

A:

Q: What basic properties of the electron were reported with its discovery?

A: The electron was discovered by an English physicist J.J.Thomson. J.J.Thomsom performed a cathode-ray…

Q: 9. What does the atomic number on the periodic table indicate about an atom of that element? A the…

A: Option A will be correct.

Q: The Periodic Table: 1. Where can you find the atomic number on an element on the periodic table?

A:

Q: What is the chemical symbol for the atom? How many electrons does the atom have?

A: Electronic configuration of an element describes how the electrons are distributed in various shells…

Q: What refinement had to be made in Dalton’s atomic theory to account for Gay Lussac’s results on…

A: Dalton's atomic theory was based on law of relative masses, but the masses of chemical compounds in…

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: 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: 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: 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: Find the amount of positive electric charge in one mole of sodium atoms. (Note: The nucleus of a…

A: Sodium It has atomic number 11. It’s outer electronic configuration is 1s22s22p63s1. Charge of the…

Q: Explain the relationship between an atoms number of electrons it’s relative stability

A: An atom contain negatively charged electrons and positively charged nucleus.

Q: In Rutherford’s planetary model of the atom, what keepsthe electrons from flying off into space?

A: To explain what is/are the things that keeps the electrons from flying off into the space in the…

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: Nitrogen (N), has two naturally occurring isotopes: N-14 that has a percent abundance of 99.63 % and…

A: The atomic mass of Nitrogen = ( mass of N-14 X percent of N-14 + mass of N-15 X percent of N-15) /…

Q: 1. If an atom has a radius of 100 m, it would approximately fill a football stadium. a. what would…

A: a) If an atom has a radius of 100 m, it would approximately fill a football stadium. What would the…

Q: I know how to get the protons and electrons but not sure how to get the neutrons

A: