Question

the electron dot diagram shows the arrangement of dots without identifying the element. which elements symbol could replace the question mark in the diagram? carbon (c) tellurium (te) beryllium (be) cesium (cs)

Explanation:

• Electron - dot diagrams (Lewis dot diagrams) show the valence electrons of an atom.
• Carbon (\(C\)) has 4 valence electrons.
• Tellurium (\(Te\)) has 6 valence electrons.
• Beryllium (\(Be\)) has 2 valence electrons.
• Cesium (\(Cs\)) has 1 valence electron.
• The electron - dot diagram in the problem has 6 dots (representing valence electrons).

Answer:

tellurium (Te)