7.8 What is a main group element? Give names and symbols of four main group elements.

Q: Describe and apply the periodic trends for first ionization energy. Identify which of the following…

A: The elements given are Mg, Sr, In, Br and Pb.

Q: The electron configuration of an element is: 1s? 252 2p6 3s² 3pó 4s² 3d10 4p6 5s² The Group and…

A: Last electron enters ns2 orbital. Therefore, this element belongs to s-block elements.

Q: 7.3 A Referring only to a periodic table, arrange the elements Ge, Se, and F in order of increasing…

A: To find: The increasing order of atomic radius for the given elements

Q: Choose the element with the larger atoms from each pair.(a) Al or In (b) Si or N(c) P or Pb (d) C or…

A: Increasing order of size:   (a) Al < In   (b) N  <  Si   (c) P < Pb    (d) F  <  C…

Q: 7.21 Specify the group of the periodic table in which each of the following elements is found: (a)…

A: Electrons are filled in this order The outer electron configuration of the elements in group 1A is…

Q: Which element has the following ground state orbital diagram? 1s 25 2p

A: So we’ve to determine the determine the unknown element having the above ground state orbital…

Q: The first five ionization energies (IE, through IE5) of a Period 6 element have the following…

A: The first five ionization energies of the element are given as, And the element is 6th period…

Q: Why is there a large jump in atomic radius as you reach the end of a period and move on to the next?…

A: Let us understand the variation in the atomic radius in a very easy way. The ionic radius is half…

Q: What element is represented by the orbital diagram shown below? [Ne] ↑↓ 3s 3p A) C B) N D) S E) CI

A: The filling of electrons in the electronic configuration of an element takes place according to…

Q: Which element has the electron configuration 1s*2s*2p*3s*3p°4s*3d"4p²?

A:

Q: 7. What is wrong with the statement "The atoms of element X are isoelectronic with the atoms of…

A: Matter is the substance or the material which has some mass and can occupy some space. It is made up…

Q: In what Period and Group of the periodic table would you find the element with the electron…

A:

Q: Draw the partial (valence-level) orbital diagram, and write the symbol, group number, and period…

A: Electronic configuration refers to the systematic arrangement of electrons in the various shells and…

Q: 8. A neutral atom of a certain element has 17 electrons. Without consulting a periodic table, (a)…

A: Electrons are negatively charged particles that revolve around the nucleus of the atom in certain…

Q: 7.45 In general, the first ionization energy increases from left to right across a given period.…

A: Magnesium and aluminum lies in the same period - 3 but in different groups. Magnesium is the block…

Q: Consider the atom of phosphorous and its radius (size). List two elements: 1)One from the same group…

A: The atomic size of elements increases up to down in group whereas decreases in the period left to…

Q: 7.34 On the basis of their positions in the periodic table, select the atom with the larger atomic…

A:

Q: 46. Given below is the electronic configuration of an element. What is the atomic number of the…

A:

Q: Po b. Write the symbol of the element with the largest atomic radius in period 5. Fr c. Write the…

A: A.Po B.Fr C. (O)Oxygen D. Ar(argon)

Q: 8.87 Rank the ions in each set in order of increasing size, and explain your ranking: (a) Li*, K*,…

A: Ionic Radii - It increases down a group and decreases across a period. For isoelectronic species, it…

Q: 2 Identify and explain the error with the order of the elements below.

A: The electronic configuration of given elements will be as following Li= 1s2 2s1 Be= 1s2 2s2 Na= 1s2…

Q: Which element is illustrated in the following atomic orbital diagram? 3s 性 杜社 2p 2s 1s Increasing…

A: From the given orbital digram we get that , The number of electrons present in this orbital digram…

Q: Arrange each of the following lists of elements in order ofdecreasing electron affinity:a. Na, Li, K…

A: Solution-  Na,Li,K -Atomic no of Li → 3 , 1s2 2s1Atomic no of Na → 11 , 1s2 2s2 2p6 3s1Atomic no of…

Q: 7.127 Explain why it is more difficult to ionize a fluorine atom than a boron atom.

A: Answer

Q: 6. What do we mean when we say that two ions or an atom and an ion are isoelectronic?

A: Isoelectronic species are referred as an elements or ions that have the same number of electrons…

Q: A researcher is studying the ionization energies of a certain element. She finds that the ionization…

A: Ionisation energy is defined as amount of energy required to remove the most loosely bound…

Q: 1) f. Provide the ground state electron configuration of chlorine by drawing and completing an…

A: Electronic configuration refers to the systematic arrangement of electrons in the various shells and…

Q: Rank the following elements according to atomic size using periodic trends from smallest to largest.…

A: Given , elements B, Ne, Li, N These are the elements of second period in periodic table.

Q: What is the abbreviated electron configuration of element Platinum (Pt)?

A:

Q: 9) Explain why the number of valence electrons for a main-group element is equal to its Roman…

A: Since for neutral atoms the number of valence electrons is equal to the atom's main group number.

Q: MISSED THIS? Read Section 9.7 (Pages 371 - 379) . Part A Consider the following set of successive…

A: The 4th ionization energy rapidly changed to very high. so the element has 3 electrons in its…

Q: The atomic number of an element is 73. Is this element diamagnetic or paramagnetic?

A: Whenever two electrons are paired together in an orbital, or their total spin is 0, they are…

Q: Arrange the following elements in the increasing order of metallic character: Si, Be, Mg, Na, P.

A: In periodic table, metallic character of an element increases ongoing down a group. On the other…

Q: 4. Which element has the greatest electron affinity?

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: 3. An atom of a certain element has 15 electrons, answer the following questions: a. What is the…

A: As per the given information it has 15 electrons  A) Ground state electronic configuration of…

Q: Unlike the elements in groups 1A and 2A, those in group 3A do not show a regular decrease in first…

A:

Q: 8.51 Arrange the following in order of increasing first ionization energy: Na, Cl, Al, S, and Cs.

A:

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: Write the electron configurations for the following atoms. Do not use shorthand notation, and use…

A: The electronic configuration of the given atoms is as follows;

Q: The atom having the valence-shell configuration 6s 6p? would be in: Group VIA, Period 4 Group IVB,…

A:

Q: On the basis of periodic trends, choose the larger atom in each pair (if possible):(a) Sn or I (b)…

A: Given: (a) Sn or I (b) Ge or Po (c) Cr or W (d) F or Se

Q: 8. Explain the layout of the modern periodic table, including rows, columns, groups, and blocks. Be…

A: in 1912, Mosely a young scientist measured the frequency of X rays emitted by a ,metal when…