Choose the larger atom or ion in each pair.  a. S P b. Na Na+  c. S^2- Se^2- d. Cu+ Cu^2+ e. Na K

Q: Arrange the following atoms in order of increasing atomic radii: Se, Sb, Br, and Te

A: The periodic table is a tabular form of all known elements. in this table all the elements are…

Q: Write the full electron configuration for each element.a. Si b. O c. K d. Ne

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: Use Coulomb’s law to calculate the ionization energy in kJ>mol of an atom composed of a proton…

A: In order to calculate the ionization energy we first write down the given data: Distance of…

Q: Determine the number of valence electrons in an atom of each element.a. Ba b. Cs c. Ni d. S

A: a. Ba The electronic configuration of Ba is, 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2…

Q: Write full electron configurations for each element.(a) Sr (b) Ge (c) Li (d) Kr

A: Electronic configuration is a way to represent the distribution of electrons in an atom.

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: 46. The diagram at the right represents two adjacent atoms of sulfur. The measure of distance X is…

A: Atomic radius of S = ~53 pm Ionization energy decreases while going from to to bottom in a group

Q: 68. Which pair of elements do you expect to be most similar? Why?(a) Ti and Ga(b) N and O(c) Li and…

A: The elements belonging to the same group exhibit similar properties. This is because the elements in…

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

A:

Q: The ionic radii of the ions S2–, Cl–, and K+ are 184, 181, 138 pm respectively. Explain why these…

A: The ions given are S2-, Cl- and K+. The number of electrons in all the species are same as the given…

Q: Rubidium and bromine atoms are depicted at right. (a) What monatomic ions do they form? (b) What…

A: Periodic table is the arrangement of atoms in groups and periods according to their increasing…

Q: Rank elements: Na, Mg, Al, and K, in increasing order of: (i) atomic size; (ii) ionization energy,…

A: Hi! Thank you for the question As per the honor code, We’ll answer the first three part of the…

Q: Choose the larger atom from each pair, if possible.a. Sn or Si b. Br or Ga c. Sn or Bi d. Se or Sn

A: SOLUTION: Step 1: Hello. Since the question contains multiple sub-parts, the first three parts are…

Q: If the core electrons were 100% effective at shielding the valence electrons from the nuclear charge…

A:

Q: calculate the energy associated with the neutral atoms becoming gas-

A:

Q: 3) Which of the following is isoelectronic with Mg? Ar, K*, S² or Ne s2-

A: The ions or atoms which possess the identical electron configuration are termed as isoelectronic…

Q: Arrange the following groups of atoms in order of increasing size. Beginning with the smallest and…

A: The neutral element have more radius than cation form of same element because cation is formed on…

Q: ) What is the effective nuclear charge (Zeff) of Sodium (Na)?  b) What is the effective nuclear…

A: a) Na metal has electronic configuration : 1s2 2s2 2p6 3s1 Nuclear shielding of electrons S = 2×1 +…

Q: Which of the se pairs of elements would be most likely to fom an jonic compond a:) P and Br b.) Cu…

A:

Q: For each atom below, give the number of valence electrons and list out the subshells containing the…

A: Valence electron is defined as the no.of electrons in its outermost shell.

Q: Which element has the smallest atoms? -- P B Mg N

A: The trend of atomic radius in periodic table is as follows: Atomic radius decreases as we move from…

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: lodine has an electron configuration of 1s? 2s? 2p® 3s? 3p® 4s? 3d10 4p® 5s² 4d10 5p5. How would…

A: Which is correct option regarding that, how p5 differ ?

Q: Use the diagram to answer the question. Which element, represented by X, would have the valence…

A: The answer is given as follows

Q: A certain atom has a [noble gas]5s24d105p4 electron configuration. Which element is it? A)Hg B)Sm…

A: As we know that the electrons are arranged according to their energy levels around the nucleus. And…

Q: 2. Write electron configurations for the following elements: a. Carbon b. Neon c. Sulfur d. Copper…

A:

Q: Arrange each set in order of decreasingatomic size:(a) Ge, Pb, Sn(b) Sn, Te, Sr(c) F, Ne, Na(d) Be,…

A: Atomic sizes increases down the group and decreases along the period.

Q: 2. Two elements that have the same ground-state valence shell configuration of ns np are a. K and…

A: Potassium and magnesium, calcium and magnesium are s-block elements and it cannot have p electrons…

Q: Rank the following elements in order of increasing atomic size: P, F, Cs, Mg  A) Cs < F < Mg < P B)…

A: Left to right in the periodic table atomic size is decreases. Up to down in the periodic table…

Q: rank the ions in each set in order of increasing size:  (a) V2+, V3+ (b) Rb+, K+, Cs+ (c) I-, Ba2+,…

A: In periodic table, as we move left to right the atomic size decreases due to the Zeff increases but…

Q: Arrange the following sets of ions in order of decreasing ionic radii. (a) Br¯, Cl¯, 0², s²- S2- >…

A: Arrange the given ions in order of decreasing ionic radii --

Q: Which of these is an isoelectronic series? ON, K, Rb, Cs OK, C Ar, S O Na Mg", s, Cr Li, Be, B, C…

A: Isoelectronic species are the elements or ions having the same number of electrons that is the…

Q: 1) Which of the following make an isoelectronic pair? A) Ca and Fe³+ B) O and F C) F and CI D) Cl…

A: Isoelectronic pair are the species which have same number of electrons.

Q: Choose the larger atom in each pair.a. Sn or Si b. Br or Ga c. Sn or Bi d. Se or Sn

A:

Q: Arrange the members of each of the following sets of cations in order of increasing ionic radii. a.…

A: Ionic radius is the distance between the center of the nucleus of an ion and up to which nucleus has…

Q: Which of the following element labels is incorrect?     O, F, Cl non-metal     Ne, Ar, Kr halogen…

A: Given,  The following elements which is incorrect labels are:

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: Which element would you expect to be more metallic?(a) Ca or Rb(b) Mg or Ra(c) Br or I

A: The metallic character is the tendency of an atom to lose electrons. as we moving from left to right…

Q: In each of the following pairs, which has the bigger radius? 0²- Mg2+ N W: X: Y: Z: < BUDE B. C. A.…

A: We use the below rules to compare the radius of different elements/ions in periodic table:

Q: Which one of these ions is not isoelectronic with Kr? Select one: 2+ a. Sr b. Br + C. Rb 2- d. Se 3+…

A: To find: The ion which is not isoelectronic with Kr

Q: 9) Explain to me why the atomic radii decrease as you move across a period rather then up a group or…

A: Across a period the atomic radii is governed by effective nuclear charge. And across a group it is…

Q: Which one of these ions has the largest radiust Select one: а. C b. s?- + с. К d. Na 2- е. О

A: Anions has larger radius compared to cations.

Q: A. Which list includes species with the same number of electrons? c. K', CI, s² d. Fe 2, Co?, Ni ?…

A: Isoelectronic species: For positive charge we have to remove an electron and for negative charge we…

Q: Which atom has the highest ionization energy? Ci P F S

A: Ionization energy: The amount of energy required to remove an electron from the outermost shell of…

Q: 1) Arrange the following groups of atoms in order of increasing size. a. Rb, Na, Be b. Sr, Se, Ne c.…

A: Given:-             (a)  Rb , Na , Be                                      This element consists of…

Q: Rank the size of the following atoms/ions from smallest (rank 1) to largest (rank 4). K+, Cl-, F-,…

A: Atoms are made up of negatively charged electrons, positively charged protons and the neutral…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.