A proton has a charge of +1. If a neutral atom loses two electrons, it will have a net charge of   a. +4   b. +2   c. 0   d. -2   e. -4

Q: nucleus örbits nucleus Rutherford Model Bohr Model The diagram shows Rutherford's atomic model and…

A: In Rutherford's model , gold foil is bombard with alpha paricles . Thus before his atomic model…

Q: You have discovered a new element - Bluehenium (Bl).  It has two naturally occurring isotopes 68Bl…

A:

Q: How are electrons and protons similar? How are they different?

A:

Q: d11 (pm) 7A BA 1A 3A 4A SA 6A 152 112 05 75 73 72 186 160 143 118 110 103 100 98 227 197 135 122 120…

A: In the given question we have to tell the reason why the atomic radius increases as we move down the…

Q: Aluminum has 13 electrons, 13 protons and 14 neutrons a) What is its atomic mass? b) What is its…

A: The atomic number of aluminium is = 13 The number of protons in the aluminium is = 13 The number of…

Q: If F is a reactive nonmetal, which other element or elements shown hereare likely to be reactive…

A: Concept introduction: Modern periodic table can be classified on the basis of the atomic number of…

Q: 1. A carbon atom with 7 neutrons, and a positive charge. 2. A nitrogen atom with 7 neutrons, 8…

A: Given We know about the number of protone ,nutron  and charge

Q: Because zinc has nearly the same atomic radius as copper(d=8.95 g/cm³), zinc atoms substitute for…

A: It is the fixed distance between the nuclei of two bonded atoms (like atoms or unlike).

Q: 4. 1N and C have the same number of A. isotopes. B. protons. C. neutrons. D. electrons. 5. Of the…

A: Choose the correct option..

Q: How many 7s electrons are in Ra?

A: The number of 7s electrons are in Ra has to be given,

Q: What are isotopes? Name at least two isotopes of 14N (show the Z, N, and A values of the isotopes.

A: An isotope is one of two or more species of atoms of a chemical element with the same atomic number…

Q: Does the Aluminum (Al) ion gain or lose electrons? a Lose because it is easier for Aluminum (Al) to…

A: Al have 13 electron and 3 electron in it's valence shell. It is element of boron family. Noble gas…

Q: Ivume: Density of Group 14 Element s Sn Pb 9.15g mass of element 27.11g 44.30g volume of H20 alme…

A: Volume of metal = (Volume of water+ element - Volume of water) Density = Mass / Volume

Q: 04:- Who........ 1-Made the first real periodic table. na elements according to their propertie=…

A: We are authorized to solve only one question at a time. Please post the rest of the questions…

Q: 21. What force holds electrons near the nucleus of the atom? A. Strong nuclear force B.…

A: From the concept of periodic trends of elements and atomic mass of elements the following questions…

Q: LKuipor Bek asderolch Jupiter Mércúry Venus * Uranus Saturn Mars Earth Ceres Neptune Jupiter Pluto…

A: Dwarf planet : Dwarf planet is a celestial body orbiting a star that is massive enough to be rounded…

Q: Part A:    Based on the amount of electrons gained/lost, label the charge of the ions from each…

A: The sequential arrangement of elements by using their chemical symbol in horizontal rows and the…

Q: Key Use the periodic table from an alternative universe below to answer the questions[ Symbol A…

A: The given reaction is, 3FAd2 + 2R  ---> F3R2 + 2Ad From the given reaction, we can conclude that…

Q: Consider the following selected postulates of Dalton's atomic theory: (i) Each element is composed…

A:

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: This homework is going to center around a completely made up element Maplenium. This metal has a…

A: Given data,Density of Ml=31.284lbs/dm3Mass of Ml=8.22×10-2Kg=0.18122lbsDimensions of…

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

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Q: What will be the charge of an atom that has gained 3 electrons? Group of answer choices +3 -3 -1 0

A: There are 2 types of ions : 1. Cation 2.Anion   When an atom gains an electron , the net charge on…

Q: match it's meaning

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

Q: 30. When an atom gains 2 electrons, it turns in to a(n) A. cation with a 2* charge B. cation with a…

A: Concept: Atoms on  gain of electron forms anion with negative charge. Atom on  loss of electron…

Q: 2. How would you describe the nucleus of an atom? A. dense, positively charged B. large, positively…

A: To describe : Nucleus of an atom.

Q: 18 A selenium atom has a 2- charge. Which best describes the selenium atom? A. 34 protons, 32…

A: Selenium is an element having atomic number 34. This means in a neutral Se atom, there are 34…

Q: For an atom to be electrically neutral, it must have the same number of:   a. electrons and…

A: The charge on the proton is positive . The charge on the electron is negative . There is no charge…

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

A: Given table is represented as follows:

Q: Use the periodic table from an alternative universe below to answer the questions[ Symbol A Atomic…

A: Given: The amount of MAx3 produced=68.4 g. The molar mass of MAx3=mass of M+3(mass of Ax)…

Q: 46. The diagram at the right represents two adjacent atoms of sulfur. The measure ôf distance o yasl…

A: As per rule only the first question can be answered: Solution to Q 46) The covalent radius of S (rS)…

Q: Which pair of particles has the same number of electrons?

A: Total electrons in a cation = atomic number - total positive charge  Total electrons in an anion =…

Q: Who performed this experiment? Robert Millikan O Niels Bohr O J. J. Thomson Ernest Rutherford What…

A: Step : 1              the answers for the following multiple choice questions are as follow :

Q: The atomic mass of the imaginary element Doginium is 15.542 amu. Doginium has two isotopes:…

A:

Q: What will be the charge of an atom that has lost 2 electrons? Group of answer choices -1 +2 0 -2

A: The correct option is as follows:

Q: In a sample of any metal, spherical atoms pack closelytogether, but the space between them means…

A: (a) The mass of an Iridium atom is 192.22 amu. The radius of an Iridium atom is 1.36 A. Consider the…

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

A: Electron has quantized nature.

Q: Which phrase beat describes the structure of an atom A: Nucleus surrounded by electrons in set…

A: Atom is made up of protons, neutrons and electrons and electrons are revolving around the nucleus.

Q: Consider generic atoms A, Be C. It is known that the mass number of A is equal to 101, the mass…

A: The atoms which have the same number of the proton but the neutron number is different is called…

Q: A helium atom consists of two protons, two electrons and Iwo neutrons. In the helium atom, the…

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Q: A) Br- Se b) A1 3+ みt P3- c) F , Mg z+ D) Ne, Ar

A:

Q: 10) Which pair represents isotopes? Circle the correct choice(s a. Ca and He 40 20 b. Fe and 58Fe 26…

A:

Q: Mendeleev left empty spaces in his periodic table for elements he suspected existed but had yet to…

A: Mendeleev is the first who makes groups and rows. Mendeleev also left empty spaces in his periodic…

Q: 70 Zn 30

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

Q: subatomic particle with a1+ charge

A: In an atom three fundamental particles are present. Positively charged particle proton and neutral…

Q: According to the bohr model, an atom with 7 electrons has how many PAIRS of electrons? Type your…

A: An atom consists of protons, neutrons, and electrons sub atomic particles. Among those particles,…

Q: Which of the following is the least reactive group of elements? a. Alkali metals…

A: The least reactive group of elements has to be identified

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.