Periods on the periodic table represent

all that

- with the same number of valence electrons
- with increasing number of valence electrons
- with the same number of electron orbits
- with increasing atomic size

Write a balanced equation showing the formation of copper (ii) nitrite from its elements

Astream of surface water reaches a porous portion of sediment and seeps into the ground. this water eventually joins a large reservoir of water located beneath the earth's surface. the example above describes the interacting with the a. cryosphere; biosphere b. hydrosphere; biosphere c. hydrosphere; geosphere d. cryosphere; geosphere

Intermolecular forces. question i need with: the only intermolecular forces that affect non polar molecules are forces.