Which of the following pairs of elements have the most similar chemical properties?     O and N     Cl and Br     Fe and Co     Li and Be     H and He

Q: In the Periodic Table below, shade all the elements for which the neutral atom has an outer electron…

A: In periodic table , group 4 elements fulfill the requirement of configuration ms2nd2 where m=n+1 and…

Q: A biochemist who is studying the properties of certain sulfur(S)–containing compounds in the body…

A: Sulphur belongs to group 16 of the periodic table , i.e, chalcogen family . Its atomic number  and…

Q: Which of the following pairs of atoms include a metal and a non-metal? 4 a) K and O b) P and Cl c)…

A: Most of the elements of the periodic table are metals. The metals are situated on the left-hand side…

Q: The ionized form of ferrous oxide is a. Fe*2: 02 O b. Fe*3: 0-2 O c. Fe*2: 03 o d. Fe*3, 03 +3.

A: In this question, we will see what is the ionized form of Ferrous Oxide  You can see details…

Q: Which of the following elements has the smallest ionization energy?    F Mg  H B Be

A: Ionisation energy is the minimum amount of energy required to remove the most loosely bound electron…

Q: Use the periodic table to arrange the elements given in order from smallest to largest atomic radii.…

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Q: Periodic Table of the Elements CI Mn Te I Xe lodine would have chemical properties most like which…

A: This is the long form of the periodic table which consists of horizontal rows called periods and…

Q: Which of the following has the lowest first ionization energy? Rb Si P Al S

A: as along the period the first ionisation increases and along with the group the first ionisation…

Q: 4. Which of the following elements is the least reactive metal? а. К C. Mn b. Ca d. Zn O A O c O D

A: Concept is based on Reactivity series of elements.

Q: Which of the following metals is the most chemically reactive?  : Sr, Mn, Be, or Cr  Which of the…

A: An atom can be considered as the smallest unit of any matter. An atom is composed of certain…

Q: Which of the following is the correct relationship for the atomic radii?  Cl > Cl- K+ > K  O> S…

A: The correct relationship for the atomic radii is :-               (C) I->I.…

Q: Write the electron configuration for the following atoms or ions a) Cl   b) Ca2+   c) P3-…

A: The arrangement depicting how the electrons of particular atom/element get distributed (allocated)…

Q: g0. Which of the following is NOT true of the Sc* ion? a) It has the same electron configuration as…

A: We know that, due to positive charge on atom, number of electron decreases. So,

Q: Which of these elements is chemically similar to magnesium? O Sulfur Calcium Iron O Nickel Potassium

A: The elements placed in same group of the periodic table have same number of electrons and hence are…

Q: Which of these species is the largest? -- Cl⁻ K⁺ Ar

A: Cl-, K+ and Ar are isoelectronic species. That is the species have equal number of electrons. All…

Q: Which pair of elements below should be the most similar in chemical properties?   Cs  ,  He I…

A: If element belong to same group then it's chemical properties is mostly same.

Q: Which of the elements listed below would have atoms with the largest atomic radius? * O Indium O…

A: First we will discuss about the concept atomic radius. The atomic radius is the distance from the…

Q: Of the following four elements which pair has atoms closest in size? Na, K, Mg & Ca O Na & Mg O Mg &…

A: Distance from the nucleus of an atom to its outermost shell is known as atomic radius of the atom.…

Q: Which of the following elements would you expect to have the lowest first ionization energy? Select…

A: Given: Some elements are given . To find: Element with lowest first ionization energy.  Solution:…

Q: In the Periodic Table below, shade all the elements for which the neutral atom has a valence…

A: Following elements are having the general electronic outermost configuration ns2 np6

Q: Below is an abbreviated form the Periodic Table. O Periodic Table of the Elements Mg K Rb Cs Ba Ni…

A: Reactivity of the elements decreases from left to right across the period in the periodic table.…

Q: O si, S, P, As, O O Rb, Sr, Sn, Ge, P O Ca, Ga, Ge, Se, Te O LI, Na, S, Si, Be O In, Sn, TI, Ga, Sb

A: The atomic radius decreases as we move left to right across a group and increases as we move down…

Q: Of the following, which atom has the smallest atomic radius?   Mg S Sr Te

A: Atomic radius: The distance between the center of the nucleus and the outermost electron is known as…

Q: Which atom has the smallest atomic radius P CI Si S How many protons neutrons and electrons does the…

A: the detailed answer is attached below.

Q: Silane, SiH., is a colorless, pyrophoric, toxic gas that is used to deposit elemental silicon for…

A:

Q: Which of the following combination of elements is the most reactive? Cs and I Na and Br Cs and Br…

A: Greater is the difference in electronegativity between two atoms in a molecule, higher will be the…

Q: most negative (most exothermic) electron affinity

A: Electron affinity is defined as the change in energy resulting from addition of an electron to the…

Q: Which of the following elements is the largest?   a barium b titanium c rubidium d sodium

A: Atomic size decreases across a period from left to right, while increases down the group.

Q: Which element in each of the following sets would you expect to have the lowest third ionization…

A: Given elements are :  Which element in each set have the lowest third ionization energy (I.E3) = ?…

Q: what is the elemental form of fluorine? F(g) F- (aq) F+(g) or none of the these?

A:

Q: Which element has the highest first IE (а) Н (c) N (b) Не (d) Ne

A: Ionization energy is the energy required to remove the most loosely held electron from the isolated…

Q: Which of the following sets of cations is in order of increasing ionic radii.   K+ < Li+ < Ba2+ <…

A:

Q: Which of the following atoms is the largest? O Rb O Li OK Cs O Na

A:

Q: In chemical reactions, sodium (Na) is more likely to behave similarly to which element?   a.…

A: Chemical properties of the element depends upon the valence shell electronic configuration. Elements…

Q: The atoms of a certain element each contain 11 protons and I valence electron. Which statement…

A: Given 11 protons  and 1 valence  electron. For neutral  atom  No of protons  = Atomic  number Atomic…

Q: Lithium occurs naturally as 6-Li and 7-Li. Which isotope is more abundant? a)lithium 5 b)lithium 6…

A: li 7 atom is more stable isotope . 92.5 natural abundance

Q: Which of the following atoms has the greatest difference between IE3 and IE4? N Al P

A:

Q: Which of the following elements would you expect to have chemical properties most similar to those…

A: on the basis of the periodic table, we can say that the elements that belong to the same group have…

Q: 2. Which one of the following equations represents the electron affinity of chlorine? Ch(g)+ é -…

A: Electron affinity of chlorine is represented by the following eqn : Cl (g) + e– ---&gt; Cl– (g) +…

Q: In the Periodic Table below, shade all the main-group elements for which the neutral atom has a…

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Q: In the Periodic Table below, shade all the elements for which the neutral atom has a valence…

A:

Q: Of the following, which element has the highest first ionization energy?   Na Ca Rb Sr

A: Ionisation energy trend: Decreases from top to bottom Increases from left to right

Q: Which of the following elements has the highest first ionization energy? O Sr As K Se Ge

A:

Q: Which of the following elements would you expect to have properties similar to those of barium (Ba)?…

A: Which of the given element would have a similar properties like Barium (Ba) = ?

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

A:

Q: What is the effective nuclear charge felt by the valence electrons of titanium (Ti) atoms?

A: Effective nuclear charge is defined as the resultant positive charge that an electron felt in a…

Q: calculate he equivalent weight of k2so4, if you know the atomic weight of k=39, s=32, o=16

A: Given,  Potassium Sulphate, K2SO4  Atomic Mass of: K = 39 S = 32 O = 16 Molar Mass = 39x2 + 32+…

Q: Indicate which species in each pair has the more favorable (more negative) electron affinity. a. Cl…

A: Electron density shifts towards more electronegative atom

Q: Which of the following atoms has the largest radius? Li Cs Na K

A: The atomic size of an atom is directly proportional to the number of shells present in that atom. As…

Q: Which arrangement is in the correct order of increasing first ionization energy? Select one: a. F <…

A: When a valence electron is ejected from the isolated gaseous atom, a certain amount is energy is…

Group 14 Elements

The following elements come under group 14 of the periodic table.