Important+Questions

Important questions about the atom [] [] 1. What are the three major components (parts) of an atom and where are they found? Include a visual.

electron shells, ions, and isotopes. Electron shells are found in dense nucleus surrounded by freely spinning electrons. Ions are found from atoms that carry electrical charges. Isotopesare found from two atoms of the same element that contain different numbers of neutrons.

2. What is true of most of the space inside an atom? The nucleus of an atom is very dense and close together so the space around the atom is open or electrons. 3. What is characteristically different from one atomic element to another (like helium and oxygen)? The number of electrons, nuetrons, and electric charge in each atom is always different. Helium is larger than hydrogen is because the number of protons, electrons, and neutrons is larger than it is in hydrogen.

4. Explain the difference between atomic number and atomic mass. Use a visual to explain the difference.

Atomic mass is the total weight of an atom. Found by adding the number of protons and neutrons.

Atomic number is the number of protons.

5. Compare the relative masses of the three subatomic particles and their charges. Create a data table.

Protons are positively charged and are heaver and larger than electrons, electrons are small negatively charged particles, neutrons has a neutral charge and are about the same size as protons


 * Electrons || - || small ||
 * Neutrons || -, + || Same as protons ||
 * Protons || + || Heaver & larger than Electrons ||

6. What is an isotope? Visually show two isotopes and explain how they are similar and different from each other. -An isotope is two atoms of the same element that contain different numbers of nuetrons. [] (VI SUAL) 7. What happens when matter is heated?

When matter is heated it turns into light for example when you turn on a light bulb is causes a electrical current to go through a metal filament which heats it and produces light. The electrical energy absorbed by the filament excites the atoms making them wiggle. The absorbed energy is released from the atoms in the form of light.

8. What happens when white light passes through a prism? From a physics perspective, how are colors of light different from one another? Include a visual. When white light passes through a prism, it comes out as a continuous spectrum of light. The colors of the light spectrum differ based on the element it reflects on.

9. What are atomic line spectra? Where do they come from? Include visuals of line spectra of at least two different elements. when electrons get excited they give off light and it creates line spectrums, they come from light.