Atomic Ionic radius (Å) radius (A) 02- s2- Se Se2- 0.66 1.40 1.05 1.84 1.20 1.98

Q: The trend in second ionization energy for the elements fromlithium to fluorine is not a regular one.…

A: To find: The element which has highest and lowest second ionization energy

Q: What are the elements under Group 4A? Tabulate your answer by giving its description, importance,…

A: Group 4A contains the elements  of carbon family having C , Si , Ge , Sn , Pb .

Q: Describe the relationship betweena. the radius of a cation and that of the atom from which formsb.…

A: a) When the electrons are lost from an atom, it leads to the formation of a cation. This results in…

Q: Explain why atomic radius decreases as we move to the right across a period for main-group elements…

A: In the main-group elements, the atomic radius decreases on moving from left to right across a period…

Q: A. A main group element with the valence electron configuration 4s2 is in periodic group It forms a…

A:

Q: The first element of every group behaves differently from the other elements in the same group.…

A: Lithium shows anomalous behavior because it has the smallest size in the group. Since it has the…

Q: 7.83 Referring to the periodic table, name (a) the halogen inthe fourth period, (b) an element…

A: Since you have posted multiple sub-parts, the answer for first three sub-parts are given below.…

Q: Which of these has the largest first ionization energy: B, Al, C, Si?

A: An atom is composed of three main sub-atomic particles; electrons, neutrons and protons. The atomic…

Q: Explain why the s-block of the periodic table is twogroupswide, the p-block is six-groups wide, and…

A: The reason why s-block of periodic table is two groups wide, p-block is six-groups wide and d-block…

Q: Choose the most correct statement about atomic and ion radius. O a) The radius of a metal ion is…

A: Given : We have to choose the correct statement.

Q: It is possible to define metallic character as we do in this bookand base it on the reactivity of…

A: First Ionisation Enthalpy of Silver (Ag) is 731 kJ/mol and that of Manganese (Mn) is 717.4 kJ/mol…

Q: With the exception of helium, the noble gases condense toform solids when they are cooled…

A: The average distance between the nuclei of the bonded atoms is known as the bond length. The half of…

Q: iguration from trends in... The first five ionization energies (IE, through IE,) of a Period 3…

A: From given  There is huge difference between IE1 and IE2

Q: The anion exerts a smaller influence on the radius of the cation. Explain.

A: The positively charged ions are called cations which have fewer electrons than protons. On the other…

Q: 7.119 The first four ionization energies of an element areapproximately 738, 1450, 7.7 × 103 , and…

A: The first four ionization energies of an element are approximately 738, 1450, 7.7 × 103, and 1.1 ×…

Q: 7.72 Give the physical states (gas, liquid, or solid) of themain group elements in the fourth period…

A: Intermolecular forces refer to the type of interactions which are present in between atoms or…

Q: What is the electron configuration (1s, etc.) for phosphorous (P)? Identify the valence electrons by…

A: Electrons are filled in a different atomic orbital in an atom. According to the Aufbau rule, the…

Q: Write the name of element and classify it as a metal, nonmetal, or metalloid. Ba

A:

Q: Explain what the name scandium(III) oxide meansin terms of electrons lost and gained, and…

A: In an ionic compound, there is complete transfer of electrons.

Q: 7.89 Which of the following properties show a clear periodicvariation: (a) first ionization energy,…

A: Let us analyse all the properties one by one. Ionisation  energy is  the minimum quantity of energy…

Q: A. A main group element with the valence electron configuration 4s' is in periodic group It forms a…

A:

Q: Based on the ionization energies of the alkali metals (see Section3.7), which alkali metal would you…

A: The ionization energies decrease as we go down the group of alkali metals. So, li has the highest…

Q: 6. (8) In general, as effective charges increases, ionization energy (/,) also increases. Explain…

A: Effective charge is the attractive positive charge of nuclear protons acting on the valence…

Q: Summarize the acid-base behavior of the main-group metal and nonmetal oxides in water. How does…

A: When a metal forms a bond with an oxygen atom then the compound is known as metal oxide. The…

Q: Explain the relationship of the first ionization energy of an element and its atomic number.

A: Ionization energy is the energy required to extract an electron from the valence shell and atomic…

Q: Write the name of element and classify it as a metal, nonmetal, or metalloid. K

A: Given elemental symbol is K. Is it a metal or nonmetal or metalloid?

Q: Placed the elements N, O, As, Se in order from least to greatest atomic radius. a. N<0< As < Se b.…

A: On going to left to right,size will be decreases

Q: In the table below, I1 – I6 represent first 6 ionization energies of a certain element. All units…

A: The minimum amount of energy required to remove the loosely bound electron from an isolated gaseous…

Q: Of the elements Li, K, N, P, and Ne, which has the greatest metallic character?

A: Metallic character of the elements increases down the group and decreases along the period from left…

Q: A. A main element with the valence electron configuration 5s- is in periodic group group It forms a…

A: When an atom excepts electrons, it acquires a negative charge whereas when an atom loses electrons…

Q: Hydrogen is an unusual element because it behaves in someways like the alkali metal elements and in…

A: (a)Electron affinity is the amount of the energy released on the addition of an electron to a…

Q: What causes the changes in ionisation energy across period 2  elements?

A: Ionisation energy is the energy required to remove an electron from the outermost shell of an atom.…

Q: A. A main group element with the valence electron configuration 35 is in periodic group 2 It forms a…

A: Answer for A.: Mg, +2 Answer for B.: Se, -2

Q: The first five ionization energies (IE, through IE5) of a Period 2 element have the following…

A: The difference in ionization energy between 3rd and 4th is very high . That means higher energy…

Q: Moseley’s experiments on X rays emitted from atoms led tothe concept of atomic numbers. (a) If…

A: a.  Now to see which element is placed next to chlorine in the order of increasign atomic mass we…

Q: As we move across a period of the periodic table, why dothe sizes of the transition elements change…

A: The reason is as given below;

Q: the solid state

A: In this question, we have to tell that when the temperature is below, what are the changes in the…

Q: The first ionization energy of helium is 2370 kJ mol¯1, the highest for any element. (a) Define…

A: a. The ionization energy of a chemical species (an atom or molecule), is the energy required to…

Q: Explain why atomic radius decreases as you move to the right across a period for main-group elements…

A: Moving towards the right side of the periodic table leads to atomic number increases means there is…

Q: What is the characteristic valence electron configuration of the group 7A elements, the halogens?

A: The halogens elements contain valence electrons of seven; two in s-orbital and seven in p-orbital.

Q: rank the three anions of the elements F, Cl, O according to their increasing ionic radius, explain…

A: The answer to the following question is-

Q: Use electron configurations to explain the following observations:(a) The first ionization energy of…

A: (a) Given statement, The first ionization energy of phosphorus is greater than that of sulfur.…

Q: The electron configuration for vanadium (V) is O [Ar] 4s 3d³

A: The distribution of electrons in an element's atomic orbitals is described by its electron…

Q: Given the following information, identify the group from the periodic table that contains elements…

A: There are many trends in inorganic chemistry. These trends are atomic size, reactivity, metallic…

Q: The ionisation energy generally increases across a period. However, there are two exceptions to the…

A: This question is based upon the concept of ionization energy. First step is to explain about…

Q: Arrange in order of increasing nonmetallic character. (Use the appropriate symbol to separate…

A: Non metallic character : It is the tendency of elements to gain electron and form negative ions…