In the ground state, an atom of each of the elements in Group 2 has a different 1. oxidation state 2. first ionization energy 3. number of valence electrons 4. number of electrons in the first shell

What is the average speed (actually the root-mean-square speed) of a argon atom at 27°C?

Alfred wegener l is best known for what hypothesis? A. Plate tectonics B. Sea floor spreading C. continental drift D. subduction

Receiving an electrical shock when you forget to turn off the power before working on an electrical socket is an example of a negative punishment. T/F

Is luster a physical property or a chemical property?

A solute will probably dissolve best in a A. hot solvent B. cold solvent C. room temperature solvent D. temperature does not affect solubility

What happens to the elements Sodium (Na) and Chlorine (Cl) when they combine to form salt (NaCl)

Which of the following is the major advantage of using geothermal energy instead of using coal energy? Choice: You will get a brainliest! If your correct! A. More abundant than coal B. Easier to access than coal C. Releases less carbon dioxide D.

What is berylliums energy levels

What is the SI base unit of temperature? Celsius kelvin coulomb Fahrenheit

What property of an object is expressed by the measurement of an item's mass per unit volume? A. density B. viscosity C. surface tension D. buoyancy