The total number of electrons, valence electrons, and valency of He, C, and N?

Q: A. If an element with the valence configuration 4s23d7 loses 3 electron(s), these electron(s) would…

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Q: Q18. What is hybridization of the nitrogen atom in the ion NO 3¹- A. sp C. sp³ B. sp² D. sp³d

A: The hybridization of nitrogen atom in nitrate ion (NO3-) is

Q: dentify the inner electrons, outer electrons, and valence electrons in each electron configurations.…

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Q: Which of the following pairs are NOT isoelectronic?   a. F- and Mg2+   b. Cl- and Ca2+   c.…

A: Isoelectronic species have the same number of electrons, and in questions we have to tell that which…

Q: What do we mean by the term electronic structure? Select all that apply. The arrangement of the…

A: In an atoms nucleus is present at the centre and it contains neutrons and protons and these species…

Q: 1.In what PEL are the Valence electrons for an atom of lead found?   2.How many unpaired electrons…

A: 1. Atomic number of lead = 82  Its condensed electronic configuration is  [Xe] 6s2 4f14 5d10 6p2 Its…

Q: Rank the following elements in order of increasing atomic radius (smallest to largest). Li, F. CI,…

A: In the periodic table, across a period i.e. on going from left to right in  a period, atomic size or…

Q: Which atom has the largest exothermicity associated with its electron affinity? 1. F 2. N 3. H 4. Cl…

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Q: Write the condensed electron configuration (SPDF notations) for the following atoms and ions: Br…

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Q: 17. These are the first eight ionization energies for a particular neutral atom. All values are…

A: The answer of the above question is given in step 2

Q: QUESTION 10 The electron configuration of Co (element 27) and the number of unpaired electrons are…

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Q: Q20. Which correctly describes experimental data if the exact value 5.50? The experimental data…

A: We are given the experimental data 5.49, 5.50, 5.51, 5.49 and 5.52 with the exact value being 5.50…

Q: Which is the correct description for electron affinity? A. F --> F+ + e- B. F- --> F + e- C. F + e-…

A: C. F + e- --> F- is the correct description for electron affinity

Q: Arrange atoms B, Sr, Ga, O in order of: decreasing metallic character: most metallic – ___ > ___ >…

A: Explanation to the correct answer is given below

Q: Which element has the electron configuration 1st p64s²3«6? O a. Nickel (Ni) O b. Vanadium (V) Oc.…

A: Option(a)  nickel (Ni)  Electronic configuration of nickel; 1S22S22P63S23P64S23d8(atomic no is…

Q: 3. Arrange the following groups of atoms/1ons in order of increasing size.

A: Atomic size is the distance between the centre of the nucleus of an atom and its outermost shell…

Q: Which of the following characteristics DOES NOT DESCRIBE atoms on the top right of the periodic…

A: ans: D Bigger ,more rings 1 or 2 valence electrons REASON: In periodic table from left to right…

Q: Energy Refer to the correctly filled orbital diagram for aluminum, below, to help you answer this…

A: We have to select the correct statement regarding how aluminum atom ionizes

Q: Part A:  What is the formula for Calcium Fluoride?   Part B:  What is the ratio of Calcium ions to…

A: let see all the parts one by one

Q: Consider the first ionization energy for nitrogen (N) and oxygen (O).  Of the two, which one has the…

A: We have to explain which one among N and O has the highest first ionization energy and the reason…

Q: A neutral atom has the following electron configuration: 1s²2s²2p² What is the chemical symbol for…

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Q: Which of the following atoms contains only three valence electrons: Li, B, N, F, Ne?

A: Steps to followed to find the valence electrons present in the atom. Step 1: Identify the atomic…

Q: Fill in the following table for the given electron configurations. Remember that valence electrons…

A: electrons of the outer most shell orbital is called valance electrons. from the total no of…

Q: 1. How many valence electrons would atoms of the element boron (B) have? 2. How many valence…

A: The answer are as follows,