What is the charge of a proton, electron and neutron

Magnesium has 12 electrons arranged in three energy levels. The outer level has two electrons. In order to become stable, the atom loses two electrons thus exposing the previous level with 8 electrons and subsequently becomes an ion withA.

Which structure do both nonvascular plants and seedless vascular plants have in common

Which object will sink in freshwater, which has a density of 1.0 g/cm3? Object 1, which has a density of. 08 g/cm3 Object 2, which has a density of 1.9 g/cm3 Object 3, which has a density of. 06 g/cm3 Object 4, which has a density of. 03 g/cm3

When H2CO3 reacts to form CO2 and H2O, what is the net change in the number of shared electron pairs?

What is the Dimensional analysis definition chemistry

Ozone reacts completely with NO, producing NO2 and O2. A 13.0 L vessel is filled with 1.30 mol of NO and 1.30 mol of O3 at 401.0 K. Find the partial pressure of each product and the total pressure in the flask at the end of the reaction.

Which particles make up the nucleus of an atom? protons and electrons neutrons and electrons protons only protons and neutrons neutrons only

An egg is fried is that a physical or a chemical change

How many mono-; di -; and trichloro derivatives are possible for cyclopentane?

A gas occupies 3.60 L when the temperature is 45.0oC and at 1.02 atm of pressure. What temperature change (in K) will be needed to change the volume to 6.25 L at constant pressure?