Why don't you fall through your seat as the gravity pulls you down to your seat

True or false: the cycle of seasons on the earth is caused by the tilt of the earth on its axis toward and away from the sun.

What do elements in a family tend to share. a.) similar periods b.) similar groups c.) similar atomic symbols d.) similar chemical properties and characteristics

If an atom contains 11 protons in its nucleus, predict the element with the atomic number and electronic configuration. will the number of electrons remain the same during the chemical reaction in such an atom? explain.