Which ion is smaller?         Which ion is smaller? F− Na+

Q: Arrange the following from the largest to smallest ions (Ca, Mg2+, Br-, Lit, Se)

A: Increasing the number of electrons in a shell will increase the size of the resulting anion whereas…

Q: Re-order each list in the table below, if necessary, so that the atoms or ions in it are listed in…

A: When we go from top to bottom in a group size increases due to increase in number of shell. When we…

Q: Re-order each list in the table below, if necessary, so that the atoms or ions in it are listed in…

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Q: Re-order each list in the table below, if necessary, so that the atoms or ions in it are listed in…

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Q: Predict the larger ion in each of the following pairs. Give reasons for your answers. (a) O¯, S²-…

A: Atomic size increases on moving down the group and decrease on moving right of the periodic table.

Q: Re-order each list in the table below, if necessary, so that the atoms or ions in it are listed in…

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Q: Which element below has the largest second ionization energy (IE₂)? Mg OOO O Ca

A: The Ionization energy decreases from top to bottom in groups, and increases from left to right…

Q: Which Ion is expected to be the largest ? Ca2+ S2- K+ cl-  Or do  all of  these ions have the same…

A: All four ions have an equal number of electrons and therefore share the same electron configuration.…

Q: Rank the ions in each set in order of decreasing size, and explain your ranking:(a) Se2-, S2-, O2-…

A: Rank the ions in each set in order of decreasing size, and explain your ranking: (a) Se2-, S2-, O2-…

Q: Which atom has the most exothermic electron affinity? A) Ga B) Sr C) Al D) Cl

A: Option D will be correct.

Q: Which of the following series of isoelectronic ions correctly lists the ions in order of increasing…

A: Ionic size less for cation and more for anion because in cation less number of electrons hold very…

Q: K 7.3 7.3 Group 8A exhibits the highest first ionization energy. Which group do you expect to…

A: The energy required to remove an electron from the outermost orbital of an atom is called as the…

Q: atom

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Q: Re-order each list in the table below, if necessary, so that the atoms or ions in it are listed in…

A: Mg > S > Cl  As we move left to right in a period,  atomic redius decreases due to effective…

Q: Which of the following ions/atoms has the smallest atomic radii? O A. Ne O B. 02- O C. Na+ O D.F- O…

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Q: (5) Which is the larger species in each pair? a. Li or Lit b. I or Cs* C. Cr or Cr3+ d. O or O24

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Q: Which of the following sets of cations is in order of increasing ionic radii. A Ba2* < K* < Cs* <…

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Q: For each of the following pairs of atoms, circle the atom with the highest first ionization energy…

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Q: In each of the following pairs, which has the larger radius? (a) Li atom or Li ion (b) Mg atom or Mg…

A: From the following, which has the larger radius has to be given.

Q: Re-order each list in the table below, if necessary, so that the atoms or ions in it are listed in…

A: The trend in atomic size in a periodic table is as follow- The atomic size in same group going from…

Q: Select the diamagnetic ion. O Cu* O Ni2+ O Fe3+ O V3+ O Mg*

A: Diamagnetic ion: Ion having no unpaired electron

Q: what species has the larger ionization engery? S Mg

A: The energy  needed for removing an electron from valence shell of isolated gaseous atom .

Q: Re-order each list in the table below, if necessary, so that the atoms or ions in it are listed in…

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Q: Which of the following ions has the largest atomic radii? 02- F- Ne Na* All of these ions have the…

A: Which of them having largest radii of them ?

Q: Re-order each list in the table below, if necessary, so that the atoms or ions in it are listed in…

A: 1) Na&gt;Mg&gt;Mg+ 2) I-&gt;I&gt;Br 3) Al&gt;Si&gt;S

Q: Which is the larger species in each pair?a. Li or Li + b. I - or Cs + c. Cr or Cr3 + d. O or O2 -

A: a) Li+ is obtained from Li. When Li atom loses one electron, then Li+ is formed. As Li+ has three…

Q: 1. Which of the following elements has the lowest ionization energy?a. Rbb. Nac. Cd. F

A: The electronic configuration of each element is given below. Rb = [kr] 5s1 Na = [Ne] 3s1 C = [He]…

Q: Re-order each list in the table below, if necessary, so that the atoms or ions in it are listed in…

A: Size of the atoms increases down the group and decreases along a period. Size of cation is smaller…

Q: Re-order each list in the table below, if necessary, so that the atoms or ions in it are listed in…

A: In the given question, we have to arrange the following atoms in decreasing order of their atomic…

Q: Arrange the following sets of ions in order of decreasing ionic radii. (a) Br,I, s², Se² (b) Ba2+,…

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Q: How many unpaired electrons does the atom N have? O 1 5 3 2 4

A: N atom is the Nitrogen atom. It has the atomic number 7. The electronic configuration of N atom is,…

Q: Which of the following pairs of atoms and ions are isoelectronic?    Se2−, Br−    Cs+, Xe…

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Q: Which of the following species has the same number of electrons as Cl⁻? A) S²⁻ B) Br⁻ C) F⁻…

A: Number of electrons in a cation= atomic number – magnitude of charge Number of electrons in a anion=…

Q: Which list of ions is arranged in order of increasing size? Na*, A3+, K*, Mg2+ O A3+, Mg2+ , Na*, K*…

A: If the charge is more positive the number of protons are more than that of electrons, therefore, the…

Q: Select the correct statements about atomic and ionic sizes below. Check all that CIis smaller than…

A: Atomic radius: The atomic radius of an element decreases as we move from left to right in a period…

Q: Re-order each list in the table below, if necessary, so that the atoms or ions in it are listed in…

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Q: Re-order each list in the table below, if necessary, so that the atoms or ions in it are listed in…

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Q: 5. Which of the following is isoelectronic with an ion of cesium (Cs)? а. Ва b. Cs с. Те? d. I е. Rn

A: Isoelectronic species are those elements which have same number of electrons. The given element is…

Q: How many unpaired electrons does the atom Fe have? 1 4 3 O 2

A: Electronic configuration: Electronic configuration of an element is the arrangement of its electrons…

Q: Predict the larger ion in each of the following pairs. (a) Br or Rb* (b) Co3+ or Co2+ (c) S or S2-…

A: More the positive charge, smaller the size. More the negative charge, larger the size.

Q: Which neutral element has the following electron configuration? 1 s^2 2s^2 2 p^6 3 s^2 3 p^6 4…

A: Electronic configuration is the ground state distribution of electrons among the orbital of species.…

Q: How many electrons are in the outermost shell of the Cl- ion in its ground state? 6 0 8 2

A: The atomic number of Chlorine is 17. So, the elemental chlorine contains 17 electrons in it. If we…

Q: Re-order each list in the table below, if necessary, so that the atoms or ions in it are listed in…

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Q: Re-order each list in the table below, if necessary, so that the atoms or ions in it are listed in…

A: We know that, i) As we move from left to right in a period, The atomic/ ionic size decreases due to…

Q: which one has the largest second ionization energy? Cs K C Si Na

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Q: Which of the following is written in the correct order of increasing ionization energy? A. K < Na <…

A: Given,  K  Na  P  F  Ne

Q: Which of the following atoms has the least metallic character? Rb Li Na Cs K

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Q: Re-order each list in the table below, if necessary, so that the atoms or ions in it are listed in…

A: Atomic size is measure the distance between the nucleus and the outer most shell of the…

Q: How many F minus ions will one PB+ ion be paired? 1, 2, 3 , or 4?

A: Fluorine (F) is a chemical element with atomic number 9. Its electronic configuration is 1s2 2s2 2p5…

Q: Re-order the list II atoms and ions in order atoms and ions of decreasing size Mg , Na, Mg O.0.0

A: The question is  based on the concept of periodic properties of elements. We have  to arrange the…