Give a reason why hydrogen might be placed along with the group 1A elements of the periodic table.

Q: How can iodine (Z = 53) have a higher atomic number yet a lower atomic mass than tellurium (Z = 52)?

A: An atom is made up of three particles namely, protons, neutrons, and electrons. The protons and…

Q: Which of the following elements have the largest atomic radius? A) Ba B) Sr C) Rb D) Cs

A: in periodic table, as we go from across a period from left to right atomic radius decreses. as we go…

Q: Draw the energy-level diagram for the atom of each of the following elements: (a) boron (b)…

A: The energy-level diagram for the atom of each of the following elements has to be drawn.

Q: 8. Based on what you know about the patterns of elements as you move down a period on the Periodic…

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Q: Why is chlorine a halogen

A: Given question is : Why is chlorine a halogen = ?

Q: Which halogen has the highest ionization energy? Explain why.

A: Hi, since you have posted multiple questions. We will answer the first questions. Kindly repost the…

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: Using n for the principal quantum number, write the electron configuration for the valence electrons…

A: Valence electrons are those electrons which are present in the outermost shell of an atom.

Q: Why the elements of group 13 are called p-block elements?

A: P-block elements are those which which last electron enters in any of three p-orbital subshells.

Q: Write the balanced chemical equation for the reaction of solid potassium with liquid water?

A: Given: Reaction of solid potassium with liquid water.

Q: Who is credited with arranging the periodic table? How are the elements arranged in the modern…

A: Periodic table is a table which shows the elements arranged in order of increasing atomic number of…

Q: What are the properties of the element flerovium (the period 7 element in group 14)?

A: Flerovium Flerovium is an atomic number 114 chemical element with the symbol Fl. Flerovium, which is…

Q: beryllium hypochlorite scandium(I) chromate hydrogen telluride

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Q: What does presenter say about the relationship between the number of valence electrons of the…

A: Main group elements consist of s-block and p block elements. s-block elements consist of alkali and…

Q: why is there no element to the immediate right of magnesium in the periodic table

A: The atomic number of magnesium is 12. The electronic configuration is 1s22s22p23s2.

Q: Write the electron configuration of sulphur using the Aufbau principle?

A: The electron configuration of sulphur ( S1632 ) :  Total number of electrons in a S atom = 16 1s2…

Q: When a nonmetal oxide reacts with water, it forms an oxoacid with the same oxidation number as the…

A: Hi, since you have posted questions that has multiple subparts. We will answer the first three…

Q: Which of the following group I elements does not form 3 types of oxides? Select one: а. Na O b. K С.…

A: Group I elements reacts with oxygen and forms three types of oxides a) peroxides :-  Peroxide…

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: What is the orbital diagram for Magnesium Mg 12

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Q: When a nonmetal oxide reacts with water, it forms anoxoacid with the same nonmetal oxidation state.…

A: Since there are multiple sub-parts in the question , only the first 3 sub-parts of the question are…

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: What is the valence electrons of halogens? * 1 3 O 7 ООО

A: A compound undergoes precipitation when its concentration exceeds its solubility. It is effected by…

Q: 2)Why did the observed chemistry of thallium mislead Mendelev to place the group 13 element (Tl) in…

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Q: Classify each element in the fourth row of the periodic table as a metal, nonmetal, or metalloid.

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

Q: How can iodine (Z=53) have a higher atomic number yet alower atomic mass than tellurium (Z=52)?

A: lodine (Z=53) has a higher atomic number than tellurium (Z=52). But the atomic mass of iodine is…

Q: The element belonging to group 3A and period 4 is Gallium Scandium Silicon Aluminum

A: The given questions asks about the identity of element which belongs from 4th period and 3A group.

Q: give an argument for and an argument against placing hydrogen in group 1 group 14 and group 17.

A: In the morden periodic table Hydrogen is in Group -1.

Q: What were two of the three reasons it took so long for lithium to be available for use in the United…

A: Lithium has its atomic symbol of Li. Its atomic number is 3. It is in the group of alkali metals. It…

Q: 2. Without looking at the periodic table write the generic valence electron configuration for the…

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Q: Some versions of the periodic table show hydrogen at the topof Group 1A(1) and at the top of Group…

A: Hydrogen is an element that is present in Group 1A (or) group 1 of the periodic table. Halogens…

Q: 35. Which of these elements form two stable oxides? A Silicon B Beryllium C Sulphur D Argon

A: Oxides are chemical compounds formed due to a combination of any element with molecular oxygen. The…

Q: 16. In the periodic table, the element hydrogen is sometimes grouped with the alkali metals and…

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Q: How are calcium and phosphorus related?

A: In comparison with calcium, plasma phosphorus exists in both organic and inorganic forms, including…

Q: Choose the block of the periodic table where phosphorus is located. O s-block O f-block O outer…

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Q: Consider two different elements, element 1 and element 2. Element 1 has both a smaller radius and a…

A: Atomic radius is the distance measured from one nucleus center of one circle to another nucleus…

Q: orbital diagram

A: The diagram in which the electrons are arranged in a particular atom is known as orbital diagram.

Q: What are the alkaline earth metals?

A: The 's' block elements are formed by the combination of group 1 and 2 elements. The atoms of the 's'…

Q: Write a general equation for the reaction of an alkali metal with each substance.a. a halogen b.…

A: Alkali metals are first group elements. They show a fixed valency of +1. Halides show -1 unit…

Q: (a) Briefly describe how the atomic radii and ionization energies of group 1A(1) elements compared…

A: Go to 2 step for your answer . Thanku)

Q: Write an orbital diagram for oxygen and use it to explain why oxygen forms a -2 ion.

A: The orbital diagram is very much useful in calculating the bond order between the atoms in a…

Q: What characteristics of Boron are similar to Group 14 elements

A: Boron is belongs to group 13th . The outer most electronic configuration of boron family is ns2np1.…

Q: Identify the group, period, block, and identity of each element, the characteristics of that type of…

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