HELP PLEASE! I have some homework for my 9th grade physical science class and it's due Monday, I already completed 1/2 of it, if
you can answer one or more that'll be really helpful, ty! If a question does not make sense please let me know, each of the pages contain a small paragraph that may be needed to complete the question. (p.s. if u do answer a question, please identify the page it is on and what number it is, tysm) page 1 3: The symbol for one of the elements is derived from its German name, wolfram. What is the English name for this element?
page 2 1. What limitation is placed on electrons in the Bohr model of the atom?
2. When the light from a gas is passed through a prism, why is there only a certain number of lines rather than a continuous spectrum?
3. How is the series of lines emitted by a gas similar to a fingerprint?
4. Explain how scientists can use the pattern of lines from an unknown gas to identify what elements are contained in the gas?
page 3 1. what is ONE important difference between the Greek theory of atoms and Dalton's atomic theory?
2. what is the significance of the invention of the STM?
3. explain how an STM creates an image of the atoms on the surface of a material
Water exists as small amounts of ice on Mars and as water vapor. It is suspected that Mars used to have flowing water on it, but that there is none left now.
