Pergunta

Which statement(s)are TRUE about electron dot diagrams? SELECT ALL THAT APPLY a same representative : element group. They are the same : for elements in the b They include all the electrons in an atom. c They only show valence electrons. d Each dot represents one electron.
Solução

4.0138 Voting

Manuela MariaMestre · Tutor por 5 anos
Responder
The correct answers are options c and d.
Explicação
## Step 1<br />Electron dot diagrams, also known as Lewis dot diagrams, are a way to represent the valence electrons in an atom. These diagrams are named after Gilbert N. Lewis, who introduced them in 1916. The diagrams are used to show the bonding between atoms of a molecule and the lone pairs of electrons that may exist in the molecule.<br /><br />## Step 2<br />Option a: "They are the same for elements in the same representative element group." This statement is not entirely accurate. While elements in the same group (column) of the periodic table have the same number of valence electrons, their electron dot diagrams can vary depending on the specific element.<br /><br />## Step 3<br />Option b: "They include all the electrons in an atom." This statement is incorrect. Electron dot diagrams only show the valence electrons, which are the electrons in the outermost shell of an atom. They do not include all the electrons in an atom.<br /><br />## Step 4<br />Option c: "They only show valence electrons." This statement is correct. Electron dot diagrams only show the valence electrons, which are the electrons in the outermost shell of an atom.<br /><br />## Step 5<br />Option d: "Each dot represents one electron." This statement is correct. In electron dot diagrams, each dot represents one electron. The dots are placed around the symbol of the element to represent the valence electrons.
Clique para avaliar: