Suppose an element from group IIIA(13), and period 3 of the periodic table forms an ionic compound with the element that has an electronic configuration of  1s2 2s2 2p5. What would be the formula of the compound, and what would be the name of the compound?

Element X reacts with element Y to give a product containing X2+ ions and Y− ions. Complete the sentences to identify whether element X or Y is likely to be a metal or a nonmetal What is the formula of the product?

Let E be any representative element. Following the patterns in the table, write formulas for the hydrogen and oxygen compounds of the following elements. Answers should be in the form of E2O (for E2O). [I've attached the photo needed to solve this problems. thank you.] (a) Sb Compound with hydrogen:Compound with oxygen: (b) Se Compound with hydrogen: Compound with oxygen: (c) Cl Compound with hydrogen:Compound with oxygen: (d) C Compound with hydrogen:  Compound with oxygen:

3. Write the symbol or formula from each element •backward water •hydride of bromine •cobalt (II) compound •another cobalt (II)compound •a Group VII hydride •Sodium salt of anion in calcium oxalate •a fertilizer • a chill in the air •ocassional acid •element purple solid •calcium selenide •element; purple solid

The first laboratory experiments to produce compounds containing noble gas atoms aroused great excitement, not because the compounds might be useful but because they demonstrated that the noble gases were not completely inert. Since that time, however, important uses have been found for a number of noble gas compounds. For example, xenon difluoride, XeF2, is an excellent fluorinating agent (a substance that adds fluorine atoms to other substances). One reason it is preferred over certain other fluorinating agents is that the products of its fluorinating reactions are easily separated from the gaseous xenon. The following unbalanced equation represents one such reaction: S3O9 + XeF2 → S2O6F2 + Xe Balance this equation. What is the minimum number of moles of XeF2 necessary to react with 4 moles of S3O9? What is the maximum number of moles of S2O6F2 that can form from the complete reaction of 4 moles of S3O9 and 7 moles of XeF2? How many moles of xenon gas form from the complete…

An element Y reacts with Hydrogen to form a compound with a formula of HY. In which group in the periodic table is Y most likely to be found?

Which has the larger radius, N3- or P3-? Explain. (You may use a periodic table.)

On packaged table salt, it is common to see a label stating that the salt “supplies iodide, a necessary nutrient.” Name and write the formula of the iodine-containing nutrient compound found in iodized salt.

2-98 Explain how the ionization energy of atoms changes when proceeding down a group of the Periodic Table and explain why this change occurs.