Is it possible for a cation to be isoelectronic with anion from the same period? Explain

When water freezes, how does the ice compare to the liquid water?

How do the crystallization and settling of the earliest formed minerals affect the composition of the remaining magma?

Which is a pair of allotropes?

The displacement method of measuring volume: is always accurate can be used to measure the volume of solids is not affected by solubility can yield inaccurate results is the only way to measure volume

The intermolecular forces between particles are select one: a. less effective in solids than in liquids. b. more effective in gases than in solids. c. equally effective in gases and in liquids. d. more effective in liquids than in gases.

What happens to the conductivity of water when a base is dissolved in it

Henry Moseley organized the periodic table by A. atomic weight. B. atomic number. C. electronegativity. D. overall charge of atoms.

What happens when elements chemically combine? A.) All elements retain their original properties B.) New properties are former C.) Only metals retain their original properties D.) New elements are formed

Which element consists of positive ions immersed in a "sea" of mobile electronsa) sulfur b. nitrogen c. calcium d. chlorine?

1.87e3 m + 24 m + 5.43e-1 km + 1.561e2 km = km