1. Consider an ion with the symbol Y- formed from a representative element. a. What is...
1. "Quackism" is a recently discovered element with the symbol Q. It is located in group 7A of the periodic table, in the same group as bromine, chlorine and iodine. How many valence electrons are associated with QO3- ? (I call this e- math in the lecture videos.) Apart from one atom of quackism, the ion also contains 3 oxygen atoms. Also, please take note of the very small negative sign on the formula of the compound. 2. "Quackism" is...
Identify the correct Lewis electron-dot symbol for the ion formed from each of the following atoms: Br 9215bd3− 9215bd− 9215ac2− 9215ac− Li Li+ vdotLi2− LI3+ Li2+ Predict the formula of their compound:
The following Lewis diagram represents the valence electron configuration of a main-gain element. This element is in group According to the octet rule, this element would be expected to form a(n) with a charge of If X is in period 3 the ion formed has the same electron configuration as the noble gas The symbol for the ion is
1. How many electrons appear in the Lewis symbol for an element whose electron configuration is 1s'2s'2p? a. 2 b. d. 2. In which of the following ionic compounds are ions with a +2 charge present? a LiSe c Mg,Si d. SnO 3. The Roman numeral ." in the name iron(m) oxide indicates that: a. iron is present in the form of +3 ions b. there are three iron atoms per formula unit c. there are three oxygen atoms per...
7. (10 points) A representative element is known to have one valence electron. The principle quantum number for the valence level is n 4 a) Write the atomic symbol of this element and its electron configuration in noble gas shorthand notation. b) Would this element behave as an oxidizing agent or a reducing agent in a chemical reaction? What is the most likely charge of the ion formed from an atom of this element?
SOSSSSSS IM PRETTY SURE THEYRE WRONG AYUDA a. Write the symbol of the element with the largest atomic radius in Group 7A. b. Write the symbol of the element with the largest atomic radius in period 4. c. Write the symbol of the element with the largest first ionization energy in Group 2A. Be d. Write the symbol of the element in period 2 that has p electrons, but no unpaired p electrons e. Write the symbol of the element...
References a. Write the symbol of the element with the largest atomic radius in Group IA Fr b. Write the symbol of the element with the largest atomie radius in period 2 Li e. Write the symbol of the element with the largest first ionization energy in Group 2A. Be d. Write the symbol of the element in period 5 that has Pelectrons, but no unpaired p electrons. Xe e. Write the symbol of the element with the abbreviated electron...
3.36 What element fits each description? a. a period 3 element that forms an ion with a -1 charge b. an ion from group 2A with 36 electrons c. an ion from group 6A with 18 electrons 3.37 Whu da
B ligand An ionic species consisting of a metal ion bonded to one or more Lewis bases A covalent bond formed when one anion or molecule donates a pair of electrons to another ion or molecule c) complex ion The Roman numeral in the chemical formula that follows the element symbol for a transition element oxidation number A Lewis base bonded to the central metal ion of a complexion ion F coordination base
12. Suppose that a stable element with atomic number 120, symbol Z, has been discovered. a. Write the ground-state electron configuration for 2, showing only the valence-shell electrons. b. Would Z be a metal or a nonmetal? Explain in terms of electron configuration. c. On the basis of periodic trends, would Z have the largest atomic radius in its group or would it have the smallest? Explain in terms of electronic structure. d. What would be the most likely charge...