Aluminum has 13 electrons, 13 protons and 14 neutrons a) What is its atomic mass? b) What is its atomic number? c) What is its electronic configuration?

Q: What are the properties of Metals and Nonmetals?

A: Elements are the class of pure substance that is made up of only one kind of particles. They can be…

Q: 4. What are the main ideas in the nuclear theory of the atom?

A: The main ideas of nuclear theory of an atom has to be given. The atomic model of Rutherford is also…

Q: how would you describe the elements from group 1 to group 12 in the periodic table

A: To find: how would you describe the elements from group 1 to group 12 in the periodic table

Q: Which statement about electrons is true?(a) Electrons attract one another.(b) Electrons are repelled…

A: Molecules are composed of tiny particles called atoms. Atoms are composed of sub-atomic particles…

Q: ment has the electron configuration 1.

A: The electronic configuration denote stage distribution of electrons in different subshells of an…

Q: Which elements would you expect to lose electrons inchemical changes?(a) potassium(b) sulfur(c)…

A: The element will lose or gain electrons in order to get noble gas configuration or fully filled…

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: List the basic postulates of Dalton’s atomic theory.?

A: The structure of matter is explained by the experimental facts known at the time John Dalton in the…

Q: A nitrogen atom has 7 protons, and the most common isotope of nitrogen has 7 neutrons. A radioactive…

A:

Q: The element with atomic number 38, strontium (Sr), can be found in what period of the periodic…

A: The periodic table is a tabular display of chemical elements arranged according to their atomic…

Q: What is the atomic number of the transition metal Gold (Au)?

A: Atomic number of gold is  79

Q: Is each of the following statements true or false?a. A proton and an electron have opposite…

A: a. A proton and an electron have opposite charges. The given statement is True. Protons are…

Q: How do I Express my answer isotope for part F

A:

Q: Rutherford's gold foil experiment contributed to the discovery that: A. Atoms contain electrons B.…

A: The given statements about Rutherford's gold foil experiment are : A. Atoms contain electronsB.…

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

A:

Q: (a) Are the elements calcium, barium, and radium in the same group or same period in the periodic…

A: A horizontal row in the periodic table is known as periods and a vertical column in the periodic…

Q: An element has nine protons and 10 neutrons in the neutral atom. (a) How many electrons are present…

A: Given: Number of protons= 9 Number of neutrons = 10 To find: The number of electrons Atomic number…

Q: 2.34 Describe Thomson's model of the atom. How might it ac- count for the production of cathode…

A: Thomson's model of atom is also known as plum pudding model. According to plum pudding model, atom…

Q: W+5 how many electrons

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

Q: a. Explain how atoms of different elements differ from one another.b. Explain how atoms of different…

A: a).

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: A neutral atom with an atomic number of five has how many electrons? (A) 1 (B) 5 (C) None (D)…

A: Given that, Neutral atom having atomic no. =5

Q: 2. Describe cathode ray tube experiment by drawing its diagram.

A:

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: what group in the periodic table would an element with atomic number 112 belong?

A: • We need to determine the group in the periodic table would an element with atomic number 112…

Q: ACROSS 2. Rutherford discovered that electrons orbit this atomic structure 5. Rutherford used…

A: Rutherford model was proposed by Ernest Rutherford in 1911. And cathode ray experience was done by…

Q: 11. Which element is represented in this model if the atomic number is 3?

A:

Q: 25. Which determines the speed of a molecule? * a. Its kinetic energy b. The amount of the molecules…

A: Multiple choice questions : 25-28

Q: 1. Periodic table and electron configurationa) How many protons, electrons and Neutrons does the…

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Q: Which of the following statements concerning the periodic table is incorrect?   a. All the elements…

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Q: An unknown cation has a charge of 2+ and the electron configuration of 1s2 2s2 2p6 3s2 3p6. What is…

A: Two types of ions are present. Anion and Cation. An ion with a negative charge is called an anion,…

Q: Explain how Dalton’s atomic theory accounts for the law of conservation of mass?

A:

Q: 1. According to modern atomic theory, what is the specific location of a neutron within an atom? a.…

A: Given: Sub-atomic particle is neutron.

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

A: Electron has quantized nature.

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Q: 1. What term did Planck use to describe a "bundle" of energy? 2. Which electron possesses the…

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

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: 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: 12C and 14C area. atoms of different elements.b. isotopes.c. atoms with different atomic numbers.d.…

A: Given substances are : 12C and 14C  Options are : a. atoms of different elements.b. isotopes.c.…

Q: (16) In the Zn²+ ion (in its ground state), how many electrons are 1 = 0 and s = The atomic number…

A: Since you have asked multiple type questions, we will solve only first  questions for you. If you…

Q: 2. An element that has 9 orbitals 5 fully filled, 2 single electrons and 1 empty orbital (a) What is…

A: f) Mg is a metal and can easily lose two electrons. It have properties similar to group 2 elements…

Q: Chlorine has 17 electrons. According to the modern atomic theory, how many electrons are found in n…

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Q: what element might you expect to be most similar to Sc in its chemical behavior? Why?

A: The element given is Sc i.e Scandium.

Q: How is the periodic Table arranged? (A) Horizontally ( B) Vertically (C) Atomic Mass. (D) Periods…

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

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Q: Three isotopes of lithium witch is the most abundant atom?

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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.