Which of the following is the correct electron configuration for an oxygen atom in its neutral state? Question 10Select one: a.   1s22s22p41�22�22�4 b.   1s32s22p31�32�22�3 c.   1s22s32p31�22�32�3 d.   1s22s12p5

Q: All atoms are mostly ______ with the nucleus having a net charge of  _________.    A. empty space,…

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Q: What gets emitted when an electron relaxes from an excited state to the ground state?  A. Electrón…

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Q: Electronic configuration of Chlorine is Select one: O 1s2 2s2 2p° 3s? 3p3 O 15 2s2 2p° 3s2 3p° O 1s…

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Q: Static electricity is observed when whic part of the atom is transferred? a. Protons b. Neutrons I…

A: Static electricity is observed when electrons are transferred .  Naturally occurring static is…

Q: Indicate if each of the following statements is true or false:a. The proton is a negatively charged…

A: a. The proton is a negatively charged particle. The given statement is False. The protons are…

Q: What is the electronic configuration of N³? Oa. 15² 25² 2p6 Ob. 1s 2s 2p 3s¹ Oc. 15²225²2p³

A: The symbol "N3-" represents a nitrogen ion with a 3- charge. To determine its electronic…

Q: 12. How many protons, neutrons, and electrons are in the following? a. 1 atom of iodine-127 b. 1…

A: Since we know that  Atomic number = number of proton  Mass number = number of protons + number of…

Q: How many valence electrons are present for an atom whose electron configuration is as follows: 1s2…

A: The given electronic configuration is : 1s2 2s2 2p6 3s2 3p6 4s2 3d6

Q: How many proto Mass # of Protons Element Element Name Atomic Number # of Neutrons # of Electrons…

A: Fill the  columns with suitable number and symbol--

Q: An anion is formed when there are more _______, then there are _______ for that particular element.…

A: We have to an anion is formed when there are more _______, then there are _______ for that…

Q: 1. Sodium 2. Lithium 3. Beryllium 4. Neon_ 5. Calcium 6. 1s²2s' 7. 1s°2s°2p°. 8. 1s 2s 2p³ 9. 1s'…

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Q: Which of the following elements would have the highest ionization energy?

A: According to definition ionization energy is the amount of energy required to remove the outer most…

Q: What is this element? [Ne] 3s2 * a. Neon b. Magnesium C. Aluminum d. Potassium As you go farther…

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Q: Electron Configurations and the Periodic Table (Section 3-8) Indicate whether the elements…

A: Elements in the same group have similar properties because they have the same number of valence…

Q: SECTION 3: Communication 5. The development of the modern atomic theory was initiated by John Dalton…

A: Modal of Atom  by- i-Joseph J. Thomson  ii-Ernest Rutherford  iii-Neils Bohr's We need to Briefly…

Q: 13.How many protons and electrons are in one Br ion? A)35 p. 35e B)80 p. 81 e C)35 p. 34 e D)35p,…

A: In neutral element , number of protons and electrons are same but for ionic species the number  of…

Q: Identify the electrons per shell number and draw the atomic model of the following elements a.…

A: Atomic number = 13 Electronic configuration:1s22s22p63s23p1 Shell: n=1 : 2 electrons n=2: 8…

Q: Elements found in the ________ period of the periodic table, can never have more than 8 electrons

A: The total number of electrons in a shell of an atom is equal to 2n2 where ‘n’ is the principal…

Q: The rate of effusion of an unknown gas was measured and found to be 18.9 mL/min. Under the same…

A: Graham's law of effusion: Graham's law of effusion states that the rate of effusion of a gas is…

Q: Which of the following is true about the atom represented by the symbol: 39 19K? This atom has:   a.…

A: Welcome to bartleby !

Q: Which of the following observations did NOT lead to the development of the Bohr model of an atom?…

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Q: If atom X has an atomic number of 74, it would have _____.   Select one: a. 74 protons and roughly…

A: The atomic number of a chemical element is the number of protons in the nucleus of an atom of an…

Q: Circle the best answer symbol to complete the sentence or question answer below: Use the following…

A: The Bohr model shows that the electrons in an atom travel in circular orbits around the nucleus.…

Q: 5. Which one of the following statements about atomic structure is false? A An atom is mostly empty…

A: Atom is made up of three fundamental particles that is electron proton and neutrons .

Q: When an atom in an excited state changes to the ground state it:   a. releases energy   b. gains…

A: When an atom in an excited state changes to the ground state it:

Q: 3. The maximum number of electrons in a d orbital is

A: The maximum number of electrons that can be present in any orbital depends on the total orbitals…

Q: Use Graph 2 to determine the percentage of parent isotopes that would remain after 2 billion. years…

A: To determine the percentage of parent isotopes remaining after 2 billion years, we can use the data…

Q: 2. Stellar Formation and Evolution a. H +H →²¼H + b. 2H +H →32HE + c. 32He +32He → 42He + - -

A: In the stellar formation and evolution we know that there is formation of Helium .Lets take for…

Q: Which of the following atoms would you expect to be smallest in the follow set of elements?   A.K…

A: In the periodic table, left to right size of the atom is decreases and up to down increases. Argon…

Q: Which of the ff is a limitation of the Bohr model of the atom? a. The model only applies to light…

A: Hydrogen is an atom having atomic number 1. Its symbol is 'H'.

Q: :The Greeks proposed that matter consisted of four fundamental substances اخترأحد الخيارات a. None…

A: Correct option is (A). None of the given options.

Q: Which atom below has the smallest ionization energy? a. Bromine b. Calcium c. Cesium d. Potassium…

A: Ionisation energy can be defined as:  The energy required to remove an electron from an isolated…

Q: QUESTION 8 A 355 isotope has protons, neutrons, and electrons.

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

Q: The electron configuration of Se is:      A.    [Ar] 4s2 3d10 4P4      B.    [Kr] 5s1 4d9 5P5…

A: Electron configuration, the arrangement of electrons in orbitals around an atomic nucleus.

Q: QUESTION 11 Principle Quantum Nurmber (n) Specify the the energy of an electron and the stze of the…

A: Principle quantum number n specify the energy of an electron and the size of the orbital

Q: QUESTION 18 The first scientist introduced the quantum concept that radiation is not emitted in…

A: Quantum concept that radiation is not emitted in continues amount but in discreet bundles of energy.

Q: MCQ 18: The clements of group II are A. metals B. non-metals C. alkalis D. noble gases

A: Till now we have 118 elements which are arranged in a tabular form which is called as periodic…

Q: 3.12 What is the maximum number of electrons that can be con- tained in each of the following? a. A…

A: In an atom, the electrons are arranged in different energy levels.  Based on these energy levels,…

Q: Which element does not belong with the other four? 8O 18Ar 17C l7N 53I A) O B) Ar C) Cl D) N…

A: The element  that does not belong with the other four is given below

Q: The vast majority of the ISM, both by volume and by mass, is made up of this element, found at many…

A: ISM means Interstellar medium. It consist of matter and radiation that exist between the spaces of…

Q: What is correct from multiple choice

A: Since the symbol of Hydrogen is H and not He Hence option b is correct answer

Q: What element will be the best conductor of electricity?

A: Electrical conductivity is a property of a substance by which it allows the passage of electricity…

Q: What is the total number of valence electrons for Gat? valence electron(s)

A: Interpretation: We have to tell the number of valence electrons in Ga3+ .

Q: identify this element in the periodic table 200 A 84

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Q: The electron configuration of Li* resembles that of which of the following elements Oa. Berrylium…

A: Given , Ion = Li+

Q: why does the sodium atom lose an electron?

A: In this question, we will discuss about why sodium atom lose an electron.  You can see details…