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calcium is not stable because the outer most atomic level is not full the only elements that are stable are the nobel gasses(helium,neon,argon,krypton,xenon,and radon)

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Calcium carbonate or magnesium carbonate make what stone?

Calcium carbonate makes limestone, while magnesium carbonate makes dolomite.


Why calcium turns to red in the flame test?

Because, due to the absorption of heat energy by the calcium atom in the flame. The electrons in the atom get promoted to a higher energy level, and exist in an unstable excited state. As they are unstable and prefer to be at their normal ground state, the extra energy that the electrons absorbed to be promoted in the first place is emitted in the form of a photon, light. The light emitted from the electrons of the calcium atoms will be at a specific wavelength, which is the red light you see emitted from the flame. Because, due to the absorption of heat energy by the calcium atom in the flame. The electrons in the atom get promoted to a higher energy level, and exist in an unstable excited state. As they are unstable and prefer to be at their normal ground state, the extra energy that the electrons absorbed to be promoted in the first place is emitted in the form of a photon, light. The light emitted from the electrons of the calcium atoms will be at a specific wavelength, which is the red light you see emitted from the flame.


Where was the calcium in your teeth made?

Your teeth do have calcium in them, but in a low concentration. If they were pure calcium, then the calcium would react with the air and saliva in you mouth and violently explode, shooting flames and most likely killing you.


What is the equation for the reaction between oxygen and calcium hydroxide?

CaCl2 + 2H2O so it makes Calcium chloride and water. ==


What makes a copper atom unstable?

A copper atom can become unstable if it loses or gains electrons, leading to the formation of ions. Additionally, changes in its nuclear structure, such as gaining or losing protons, can also lead to instability. Physical factors, such as exposure to high-energy radiation, can also disrupt the stability of a copper atom.