{"id":26920,"date":"2025-06-19T19:44:28","date_gmt":"2025-06-19T19:44:28","guid":{"rendered":"https:\/\/gaviki.com\/blog\/?p=26920"},"modified":"2025-06-19T19:44:30","modified_gmt":"2025-06-19T19:44:30","slug":"fill-in-the-boxes-and-blanks-for-sistotal-ve","status":"publish","type":"post","link":"https:\/\/gaviki.com\/blog\/fill-in-the-boxes-and-blanks-for-sistotal-ve\/","title":{"rendered":"Fill in the boxes and blanks for SiSTotal VE"},"content":{"rendered":"\n

(36 pts) Fill in the boxes and blanks for SiS
Total VE Steric Number Geometry Shape Bond Angle Lewis Structure 3-D Structure FO
Total VE Steric Number Geometry Shape Bond Angle Lewis Structure SF
Total V<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

E Steric Number Geometry Shape Bond Angle Lewis Structure 3-D Structure 3-D Structure<\/p>\n\n\n\n

The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n

Let’s analyze and fill in the chart for each of the three species: SiS\u2082\u00b2\u207b<\/strong>, FO\u2083\u207b<\/strong>, and SF\u2084\u00b2\u207a<\/strong>.<\/p>\n\n\n\n

\n\n\n\n

1. SiS\u2082\u00b2\u207b<\/strong><\/h3>\n\n\n\n

Total Valence Electrons (VE):<\/strong>
Si = 4, S = 6 \u00d7 2 = 12, charge = +2 \u21d2 4 + 12 + 2 = 18 VE<\/strong><\/p>\n\n\n\n

Steric Number:<\/strong> 2 (2 bonding domains, 0 lone pairs)<\/p>\n\n\n\n

Geometry:<\/strong> Linear<\/p>\n\n\n\n

Shape:<\/strong> Linear<\/p>\n\n\n\n

Bond Angle:<\/strong> 180\u00b0<\/p>\n\n\n\n

Lewis Structure:<\/strong><\/p>\n\n\n\n

pgsqlCopyEditS = Si = S (with each S having 3 lone pairs, double bonds to Si)\n<\/code><\/pre>\n\n\n\n
3D Structure:<\/strong> Straight line: S\u2014Si\u2014S<\/p>\n\n\n\n
\n\n\n\n
2. FO\u2083\u207b<\/strong><\/h3>\n\n\n\n
Total Valence Electrons (VE):<\/strong>
F = 7, O = 6 \u00d7 3 = 18, charge = +1 \u21d2 7 + 18 + 1 = 26 VE<\/strong><\/p>\n\n\n\n
Steric Number:<\/strong> 4 (3 bonding pairs, 1 lone pair)<\/p>\n\n\n\n
Geometry:<\/strong> Tetrahedral<\/p>\n\n\n\n
Shape:<\/strong> Trigonal pyramidal<\/p>\n\n\n\n
Bond Angle:<\/strong> ~107\u00b0<\/p>\n\n\n\n
Lewis Structure:<\/strong>
Central F with three single bonds to O (each O has 3 lone pairs), F has one lone pair<\/p>\n\n\n\n
3D Structure:<\/strong> A trigonal pyramid with O atoms at the base and F at the top<\/p>\n\n\n\n
\n\n\n\n
3. SF\u2084\u00b2\u207a<\/strong><\/h3>\n\n\n\n
Total Valence Electrons (VE):<\/strong>
S = 6, F = 7 \u00d7 4 = 28, charge = \u22122 \u21d2 6 + 28 \u2212 2 = 32 VE<\/strong><\/p>\n\n\n\n
(However, since the ion is SF\u2084\u00b2\u207a, we subtract<\/strong> 2 electrons: 34 \u2212 2 = 32 VE<\/strong>)<\/p>\n\n\n\n
Steric Number:<\/strong> 4 (4 bonding pairs, 0 lone pairs)<\/p>\n\n\n\n
Geometry:<\/strong> Tetrahedral<\/p>\n\n\n\n
Shape:<\/strong> Tetrahedral<\/p>\n\n\n\n
Bond Angle:<\/strong> ~109.5\u00b0<\/p>\n\n\n\n
Lewis Structure:<\/strong>
Central S with four single bonds to F atoms, no lone pairs on S, each F has 3 lone pairs<\/p>\n\n\n\n
3D Structure:<\/strong> Tetrahedral with S in the center and F atoms at the corners<\/p>\n\n\n\n
\n\n\n\n
Summary Table<\/h3>\n\n\n\n
Molecule<\/th>Total VE<\/th>Steric No.<\/th>Geometry<\/th>Shape<\/th>Bond Angle<\/th><\/tr><\/thead>
SiS\u2082\u00b2\u207b<\/td>18<\/td>2<\/td>Linear<\/td>Linear<\/td>180\u00b0<\/td><\/tr>
FO\u2083\u207b<\/td>26<\/td>4<\/td>Tetrahedral<\/td>Trigonal Pyramidal<\/td>~107\u00b0<\/td><\/tr>
SF\u2084\u00b2\u207a<\/td>32<\/td>4<\/td>Tetrahedral<\/td>Tetrahedral<\/td>~109.5\u00b0<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
These answers are based on standard valence-shell electron-pair repulsion (VSEPR) theory. This theory helps predict the molecular shape by considering repulsions between electron domains (bonding and lone pairs). A lower number of lone pairs usually leads to more symmetrical and regular shapes.<\/p>\n\n\n\n
\"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"
(36 pts) Fill in the boxes and blanks for SiSTotal VE Steric Number Geometry Shape Bond Angle Lewis Structure 3-D Structure FOTotal VE Steric Number Geometry Shape Bond Angle Lewis Structure SFTotal V E Steric Number Geometry Shape Bond Angle Lewis Structure 3-D Structure 3-D Structure The Correct Answer and Explanation is: Let’s analyze and […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-26920","post","type-post","status-publish","format-standard","hentry","category-quiz-questions"],"_links":{"self":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/26920","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/comments?post=26920"}],"version-history":[{"count":1,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/26920\/revisions"}],"predecessor-version":[{"id":26932,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/26920\/revisions\/26932"}],"wp:attachment":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/media?parent=26920"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/categories?post=26920"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/tags?post=26920"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}