Which statement is true about the Alkali metals -In nature they are found as pure elements and compounds
-The pure elemental state is man made
-In nature they are never found as pure elements
-In nature they are found only as pure elements.

Which statement explains why the bonds between non metals tend to be covalent? the bonds are found to be nondirectional they have large differences in electronegativity they have small differences in electronegativity they have ions that produce an electrostatic pull

What is the approximate vapor pressure when the gas condenses at 70 degrees celsius

The comparison of the number of atoms in a copper coin the size of a penny with the number of people on earth is made to illustrate which of the following? a. that atoms are indivisible b. that atoms are very small c. that atoms are very large d. that in a copper penny, there is one atom for every person on earth