Which of the following atoms is correctly listed with its number of valence electrons? Group of answer choices As has 5 Br has 6 S has 7 V has 6 Sb has 15 B has 2 Li has 3
Which of the following atoms is correctly listed with its number of valence electrons? Group of...
1)Determine the number of valence electrons for each of the atoms. Enter each answer as a numeral. For example, if an atom has two valence electrons, enter the number 2. (Li, CI, Al, Ne) 2) Identify the number of core and valence electrons for each atom. Ra: Core electrons and Valence Electrons
write condensed electron configurations for the following atoms and indicate the number of valence electrons 2. Write condensed electron configurations for the following atoms and indicate the numbe valence electrons 3. What is wrong with the following electron configurations for atoms in their ground states? (rewrite each one correctly) 1s²2s²3s [Ne]2s²2p3
"-8 Saved Which of the following atoms has the greatest shielding for its valence electrons? Multiple Choice Ο all have the same amount of shielding all have Ο Ο Ο Ο How many total d - electrons does Mo+4 have? Write answer as a number NOT words. Numeric Response Saved Which effect explains why the atomic radius decreases left to right across a period? Multiple Choice Ο Increasing Zeff Ο Increase in inner electrons Ο Decrease in outer electrons Ο...
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...
for the molecule BBrCl2 find: 1.Number of valence electrons 2. Formal charges on central atoms 3. Electron-group Geometry 4. Molecular Geometry 5. Resonance (if any) 6. Lewis Structures for each molecule
Calculate the Zeff for the valence electrons in the atoms Li to Ne using (a) the assumption that o equals the number of inner-shell electrons and (b) Slater's rules. Plot both sets of results on the same graph and discuss.
25-30 25. Which of the atoms listed below is the most electronegative? A) Li B) Cs C)P D) As E) Ge 26. The number of pi bonds in the molecule below is ?? ?? A) 2. B) 4. C) 6. D) 10. E) 15 27 Which of the following molecules have the same geometries? 28. Which of the following is a basic oxide? 29. Which of the following elements behaves chemically similarly to oxygen? 30 Lanthanide (or rare earth elements)...
_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)
In this text, valence = (number electrons in valence sheel of free atom)-(number non-bonding electrons on atom in molecule) or valence = (number of bonds)+(formal charge) figure.4 has two models of CH5+ and text says first model has valence of 6 which I don't understand. according to equation above. shouldn't valence be valence = 4-0=0 or valence=5+1(I'm not sure... because there are one electron in hydrogen)=6??
2. Give the number of valence electrons and draw the Lewis dot structures for the following elements: Valence electrons Lewis dot structure a. Br - - b. P c. S d. B c. Ge 3. Draw the Lewis structures of the following and indicate whether or not the molecules satisfy the octet rule. H2O BF3 BeH2 CO2 12-2 CHEH1314-YEAR 2019-2020