PLEASE HELP- I WILL GIVE BRAINLIEST AND THANKS! Calculate the mass of 10cm3 of a 0.4g/dm3 solution of sodium carbonate

radioactive decay occurs in unstable atomic nuclei – that is, ones that don't have enough binding energy to hold

the nucleus together due to an excess of either protons or neutrons.

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

practical process described pest part of scientific investigation.

because practical knowledge is powerful then therotical knowledge.

the answer to your question is c