Answer:
the element must be in the fifth, sixth, or seventh energy shells.
Explanation:
Because the first ionization energy is less than calcium's, the element must be larger and in the next energy shell. Calcium is in the fourth energy shell, so the element must be in the fifth, sixth, or seventh energy shells.
Answer:
Explanation:
Wind, solar and hydroelectric systems generate electricity with no associated air pollution emissions. Geothermal and biomass systems emit some air pollutants, through total air emissions are generally much lower than those of coal and natural gas fired power plants.
Answer:
Bullet List and Highlights
Explanation:
Bullet list: Bullet Lists always used to work for me when I would be writing notes and you can always label each bullet point after a topic so you can find which one you're looking for.
Highlights: You can write down the main points of the Passage and highlight the main points of the list you made and make sure you study the highlighted lines first and the normal ones second.
Answer:
ganar
Explanation:
'ganar una medalha' is win a medal
