What is the atomic number of a sodium atom that has 11protons and 12 neutrons.

Thermal energy is caused by the motion of?

The diameter of a circular swimming pool is 12 feet. Find circumference Round to the nearest tenth. Use 3.14 for pi

A mixture of three noble gases has a total pressure of 1.25 atm. The individual pressures exerted by neon and argon are 0.68 atm and 0.35 atm, respectively. Wha t is the partial pressure of the third gas, helium?

Based on the table, which atom has a charge of - 1

Which is true of Saturn's satellite, Titan? O A. It is about half the size of the planet it orbits. O B. It is Saturn's only satellite. C. Its surface temperature is much warmer than the surface temperature of Earth. D D.

Why is it important for us to study outer space?

What is the correct noble gas configuration of chlorine

A flask of fixed volume contains 1.00 mole of gaseous carbon dioxide and 88.0 g of solid carbon dioxide. the original pressure and temperature in the flask is 1.00 atm and 300. k. all of the solid carbon dioxide sublimes.

Oxygen is in group 16 of the periodic table. An oxygen ion (O2-) has a charge of - 2. Which of the following would be most likely to combine with an oxygen ion to form a new compound?

How and why - Why does ice float on water