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13 The following element has four valence electrons: AB В | 0 ICN D Li
1. The number of valence electrons that a VIIA element has is: The number of valence electrons that a VIIA element wants as its octet is: The preferred number of bonds for a VIIA element is: 2. The number of valence electrons that a VIA element has is: The number of valence electrons that a VIA element wants as its octet is: The preferred number of bonds for a VIA element is: 3. The number of valence electrons that a...
Which element has no unpaired electrons? 8 А. С В. В С. N D. Mg
1. A compound designated as AB,C, has a total valence electron of 26 where each element B and C has 7 valence electrons. Element A is the least electronegative. a) Draw a reasonable Lewis structure. b) What is the molecular shape of your Lewis structure? c) Is your structure polar or non-polar? 2. For the following equilibrium reaction: Energy + 2AB (g) = 2 AB (g) + B2 (g) where K = 55 What will happen to the amount of...
13. Element X is more electronegative and smaller than nitrogen. X has valence electrons in the second shell and forms ions with a charge of 1. Deduce the identity of X and state its name.
The following properties are observed for an unknown element. Identify the element from its properties. (a) The neutral atom has two unpaired electrons. (b) One of the valence electrons in the ground-state atom has ml = +1. (c) The most common oxidation state is +4. (d) If an electron in a hydrogen atom were excited to the same principal quantum level, n, as the valence electrons in an atom of this element, and fell to the n - 1 quantum...
Which element has the following quantum numbers for its valence electrons? m ms n 0 +1/2 2 e- o -1/2 0 e- 2 -1 +1/2 1 2. e- 1 0 2 - 1/2 +1/2 1 1 N e- С o Si O Ne ON Mg
Question 13 1 pts For an element "A" with 8 valence electrons, what is the hybridization of AO? sp2 O spd 2 spd sp sp Question 14 1 pts Which of the following statements about fluorine is true? Because of its high electron affinity, gaining an electron is an endothermic process It has a smaller atomic radius than chlorine Its electron affinity is slightly lower than that of oxygen. O It has a lower electronegativity than chlorine O Its atomic...
A compound designated as AB2C, has a total valence electrons of 26 where each element B and C has 7 valence electrons. Element A is the least electronegative. Draw a reasonable Lewis structure. What is the molecular shape of your Lewis structure Is your structure polar or non polar
_group 2? 2. Which element in group 1 has valence electrons closest to nucleus? 3. Valence electrons are closer or further from the nucleus going down a group? 4. Atomic radius increases or decrease moving down a group? 5. What is effective nuclear charge? (Definition)
Name the element in the third period (row) of the periodic table with three valence electrons. Express your answer as a chemical symbol. Name the element in the third period (row) of the periodic table with four 3p electrons. Express your answer as a chemical symbol. Name the element in the third period (row) of the periodic table with six 3p electrons. Express your answer as a chemical symbol. Name the element in the third period (row) of the periodic...