MCQ 32: The atom of aluminum (Al) has the number of neutrons (n") A. 13 В. 27 C. 14 D. 13

Q: Question 2 (3 points) Read the passage and use the diagram to answer the next two questions. An atom…

A: An atom is made up of mainly three types of subatomic particles namely electrons , protons and…

Q: Describe John Dalton's atomic theory?

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

Q: • Part D Based on your answer in Part B, how many neutrons are in this amount of C? Express your…

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Q: g. What is the atomic number for potassium? h. What is the atomic mass for potassium? i. How is the…

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Q: ered neutro

A: Neutron is a fundamental particle present in the nucleus of an atom.

Q: Selenium-80 is a naturally occurring isotope used in overthe-counter supplements.a. How many protons…

A: An atom is mainly composed of three sub-particles; electrons, protons and neutrons. These particles…

Q: In _______, a negatively charged electron is ejected from the unstable nucleus, converting a neutron…

A: Stability of the nucleus is generally influenced by 3 factors- Mass Defect: greater mass defect,…

Q: 4. What do you understand I A. lodine number,

A: ANSWER IS

Q: Explain your answer. 1. Who is sir john joseph dalton? 2. What elements were formed during and after…

A: Supernova: It is breaking or explosion of star which include a lot of energy and light during the…

Q: The explosion of an atomic bomb in the atmosphere releases many radioactive isotopes into the…

A: The explosion of atomic bomb occurs as a result of rapid release of energy from a high speed nuclear…

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: Boron has 2 commonly occurring isotopes. 19.9% of Boron atoms have 55 neutrons and 55protons,…

A: We have to calculate the expected mass of B.

Q: 2.70 Naturally occurring boron consists of two isotopes: 1°B (19.9%) with an isotopic mass of…

A: Average atomic mass is given as,

Q: 2/17/2021 Chapter 2 Concept Check on Atoms and Isotopes Chapter 2 Concept Check on Atoms and…

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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: A natural sample of chromium, taken from the ground,will contain four isotopes: Cr-50, Cr-52, Cr-53,…

A: Chromium has four stable isotopes which are Cr-50, Cr-52, Cr-53, and Cr-54. Isotopes are the atoms…

Q: ord's lab Select one: O a. was the basis for Thomson's model of the atom O b. proved the law of…

A: The Rutherford's model of an atom: A narrow beam of alpha particle are bombarded on the gold foil…

Q: Fill in the table with the most information you can. Use pictorial illustrations whenever necessary.…

A: Structure of atom has been described on the basis of various types of atomic model given by various…

Q: - Part C What is the symbol for the isotope of 55 Fe that possesses 31 neutrons? Express your answer…

A: Isotopes are defined as same element having same number of proton but different number of neutron in…

Q: 35. What is the total number of electrons in a phosphorus ion?

A: The phosphorous atom symbol is P which has the atomic number 15.

Q: Mass of one a mu)             Carbon Type 1                        12.0             Carbon Type 2…

A: The mass of 1 carbon -12 atom = 12 amu. The mass of 1 mole of Carbon = 12 g/mol.

Q: In dating geological samples, scientist compare the ration rubidium-87 to strontium-87. Give the…

A: The atomic number is the number of protons in the nucleus of an atom. In an electrically neutral…

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: An element has two naturally occurring isotopes. One has an abundance of 58.009% and an isotopic…

A: Isotopes of any element is the Pair of element with same atomic number but different mass number.

Q: Find the number of protons, electrons, neutrons of and symbol of Tungsten.

A: The number of protons, electrons, neutrons of and symbol of Tungsten has to be given,

Q: 10. How are elements organized on he Periodic Table of Elements? A increasing atomic mass B…

A: The periodic table (the modern one) is framed based on the modern periodic law which state that the…

Q: An atom has a +3 charge a mass # of 42 and 20 neutrons. What is the amount of electrons it has?

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Q: has a mass about the same as that of a proton has a-1 charge is found in the nucleus is attracted to…

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Q: Chemistry midterm A neutron has a mass of and a charge of

A: A neutron is a particle present in the nucleus of the atom. It is a neutral particle having 1 unit…

Q: of Protons and Neutrons ir

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Q: 1. Boron 2. Cadmium 3. Phosphorus 4. Neon 5. Radon A. [Ne] 3s²3p³ B. [He] 2s²2p¹ C. [He] 2s²2p6 D.…

A: The electronic configurations of some elements are given. Match the elements with the given…

Q: 1. Rubidium has two naturally occurring isotopes, from the following data calculate the value of X?…

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Q: Antimony (Sb), has two naturally occurring isotopes: Sb-121 that has a percent abundance of 57.30 %…

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Q: The nucleus of an atom accounts for most of the size and mass of the atom. O very little of the size…

A: According to Dalton's atomic theory, compound is formed by combining elements and it's also based on…

Q: Uranium has three isotopes : uranium-233, uranium-235, and uranium-238. Compare the number of…

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Q: does 1 mole of Ba and one mole of Pb have the same mass or a different mass?

A: The molar mass of a substance is equal to the mass of one mole of that substance. One mole of a…

Q: CHEM&110 Homework Chapter 1 1. In these diagrams, two different types of atoms are represented by…

A: (1) Any Substance that has mass and occupy volume, and can be sensed by our sense organs, is called…

Q: 28. - Electrons of an element T a) have a negative charge but very small mass T + b) determine the…

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Q: 3. Atomic #= # of and # of Atomic Mass= #.of neutronsD

A: Protons , Neutrons and Electrons are called as sub atomic particles. The reason they are said so…

Q: 19. Draw an atom (not actual size). Label your drawing as completely as possible.

A: An atom is the fundamental unit that forms an element. They are very small and contains a nucleus at…

Q: 1. Consider a neutral atom, the atomic number is equal to (a) mass of neutron (b) number of proton…

A: Atomic number depends on proton number

Q: The nucleus of an atom has a positive charge.

A: Answer - Atomic nuclei consist of electrically positive protons and electrically neutral neutrons.…

Q: Part D An atom of sulfur is represented by 1S. How many neutrons are in the nucleus of th Express…

A: The smallest unit of ordinary matter that makes up a chemical element is an atom. Every solid,…

Q: If you wanted to change the atomic number in the simulation, changing the number of which particle…

A: An atom contains the subatomic particles like Electrons, Protons and Neutrons. The subatomic…

Q: If you wanted to change the mass number in the simulation, changing the number of which particle or…

A: Mass Number is considered to be the Atomic Mass of an element.

Q: Part B The atomic number of carbon is 6. What is the mass number of a carbon atom with 5 neutrons?…

A: Given that, Atomic number of C=6 No. of neutron=5 so,

Atomic Structure

The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.

Shape of the D Orbital

Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.