Please help me understand this "Drag and drop each element symbol to its correct location on the dichotomous key". Symbols
Br Li As Ca Sb Mg Mn V Na K Sc I S Y

A) the enthralling of formation for pure element in its standard state is always positivehope this : )

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.

The answer is b because a,c,and d are opinons