In nature, the noble gases exist as Answers: strong electron affinity   highly reactive with metals   low ionization energy   good conductor of heat   inert gas

Q: The majority of known noble gas compounds are those of Xenon. Why?

A: SOLUTION: Step 1: Generally noble gases have fulfilled electronic configuration and they are very…

Q: Which of the following ions is isoelectronic to Ne? O-2 OF-2 K+ O Al+2 None of these

A: Isoelectronic species(moreover, 'Iso' means same and 'electronic' means electrons) are those species…

Q: What is the ground state valence shell electron configuration of a group 4A element

A: The s orbital of the group 4A element has 2 valence electron and the p orbital has 2 valence…

Q: Use the periodic table to classify each element as a main-group metal, a transition metal, an…

A:

Q: Which of these is the smallest? Arsenic Selenium Bromine Krypton Iodine

A: Answer:- This question is answered by using the simple concept of variation of atomic size across…

Q: which of these elements have the smallest atomic radius? silicon sodium cholrine sulfur phosphorus

A: The question is based on the concept of periodicity of properties. we have to identify the smallest…

Q: Which element has a chemical properties that are most similar to potassium? Cesium Sulfur Nitrogen…

A: The vertical column of the elements which are present in the periodic table is known as groups. Each…

Q: Which oxide is acidic.  Calcium oxide Copper oxide Magnesium oxide  Or sulphur oxide

A: Acidic oxide:- It is an oxide that produces an acidic solution of mixing with water.

Q: Is astatine a nonmetal metal or metalloid

A:

Q: Which of the following statement is untrue regarding halogen? Can exhibit multiple oxidation state…

A: Group 17th or the second last group of the periodic table is known as the halogen group.

Q: Which group of elements has the largest atomic radii? Halides Alkali metals Alkaline earth metals…

A: Atomic radii varies with the group of periodic table and with this we will answer the question.

Q: Which statement is true about an element with the generic valence electron configuration ns²np4?…

A:

Q: have varied physical properties and are found in many different compounds. Nonmetals Metals…

A: Most of the elements (93 elements) of the periodic table are metallic. Some elements present on the…

Q: How many core electrons are in N-2?

A: Given :- Atomic symbol = N-2  To find :- number of core electrons  Atomic number of N = 7

Q: Iodine (I) would have chemical properties most similar to which of the following elements Te Rb…

A: Generally we know In periodic table there are 7 periods and 18 groups. Now in a group, all elements…

Q: Which equation correctly represents the first ionization of calcium? Ca (g) – Ca (g) + e O Ca" (g) →…

A: First ionization energy - The energy needed to remove the outermost,  or highest energy,  electron…

Q: Which of these elements has the highest first ionization energy? silicon sodium chlorine sulfur…

A: Ionization energy: The amount of energy required to remove a valence electron from neutral, gaseous…

Q: What is electron affinity?   energy change associated with the gaining of several of electrons…

A: To define: Electron affinity.

Q: Which of the following elements has the smallest atomic radius? carbon lithium boron oxygen

A: Atomic radius decreases on moving from left to right in the periodic table and increases on moving…

Q: Using its electron configuration, explain why antimony can form 3+ or 5+ cations.

A: Atomic number of antimony (Sb) = 51  So, it has total 51 electrons

Q: What types of elements are contained in group 14? Metal, metalloid, nonmetal Metals only Nonmetals…

A: Group 14 contains Carbon, Silicon , Germanium, Tin and Lead.

Q: What would be the electron configuration of a sulfur ion S-2

A: Answer: the electronic configuration of S2-  = 1s2 2s2 2p6 3s2 3p6 or [Ne] 3s2 3p6

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: Select all the elements whose elemental forms would exist as networks: Hydrogen Helium Lithium…

A: Here the word network is used for the covalent network.  Covalent network :- It is a type of…

Q: Discuss the general chemical reactivity of noble gases.

A: In the18th group of the periodic table, noble (inert) gases are placed.

Q: Which group of elements can be predicted to have the lowest second ionization energy?     Group I…

A: Second ionization energy is energy required for removal of electron from ion having +1 charge that…

Q: What are the Major element compositions and trace element compositions for peralkaline Ta-Nb, REE

A: The Major element compositions and trace element compositions.

Q: What is the formula of palladium (IV) oxide? Pd40 PdO4 PdO Pd₂0 PdO2

A:

Q: An element that has the same valence electron configuration as tin is:   antimony tellurium…

A: Elements of same group has same valence electron configuration as the only change that happens on…

Q: Which element is most likely to form a covalent bond with chlorine? Hydrogen, magnesium, sodium, or…

A: Covalent compounds are formed by the sharing of e- and ionic compounds are formed by the transfer of…

Q: List the characteristic properties of noble gases, alkali metals, halogens, and alkaline earth…

A: The characteristic properties of noble gases, alkali metals, halogens, and alkaline earth metals…

Q: Elements in group 7A are considered

A: There are total seven periods and eighteen groups in the modern periodic table where all the…

Q: What is the chemical formula for the iconic compound barium nitride?

A: Chemical formula of an ionic compound can be formed by criss-crossing the valencies of ions.