Which particles make up the nucleus of an atom?

A. protons and electrons

B. neutrons and electrons

C. protons only

D. protons and neutrons

E. neutrons only

What is the purpose of the cobalt blue glass?

Based on results of his study of atomic x-ray spectra, Moseley discovered a relationship that replaced atomic mass as the criterion for ordering the elements.

The solubility of a compound with a molecular weight of 233.2 is determined to be 27.9 g in 125.0 g of water at 398 K. Express this concentration in terms of molality. 0.957

When the surface water temperature is still well below the water boiling temperature, some bubbles at the bottom tend to float up but somehow the bubbles seem to disappear before reaching the surface.

A Cadillac Escalade has a mass of 2 569.6 kg, if it accelerates at 4.65m/s2 what is the net force on the car?

1. Tonic Bonds are a. Formed when a metal and nonmetal transfer electrons b. Formed when a nonmetal and nonmetal share electrons Formed when a metal forms || bonds with other like atoms d. Formed when noble gases lose electrons

Why does the sun appear to be the brightest star in the sky? A - Its apparent brightness is much greater than other stars. B - It burns more gas, making it brighter than any other star.

What effect does nuclear radiation have on atoms? It splits atoms. It burns atoms. It ionizes atoms.

The density of an aqueous solution of nitric acid is 1.36 g/ml and the concentration is 2.48 m. what is the concentration of this solution in percent by mass?

In a crystal lattice of an ionic compound, A. Kind of a given charge are clustered together B. Ions are surrounded by ions of the opposite charge C. A sea of electrons surrounds the ions D. Neutral molecules are present