Not all elements readily fit in the metal or non metal groupings. These elements are called metalloids. Examine the table below and classify W, X and Y as metals, metalloids or non-metals. W= Lustre: Moderately high
Electrical conductivity: Low
Density: Medium
Melting point: Very high

X= Lustre: Low
Electrical conductivity: Nil
Density: Low
Melting point: Low

Y= Lustre: High
Electrical conductivity: High
Density: High
Melting point: High

Using a value of ksp = 1.8 x 10-2 for the reaction pbcl2 pb+2(aq) + 2cl -(aq). if the value of ksp was determined to be only 1.2 x 10-2: too much solid has dissolved. additional precipitate is forming. the solution is unsaturated. the ions are now combining to reduce their concentrations.

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.

Abaker touches a pie right after taking it out of the oven. which statement best explains why the pie feels hot?