Which element has a -2 charge?
magnesium
sulfur
sodium
h...
Physics, 17.10.2019 10:30 Alex9089435028
Which element has a -2 charge?
magnesium
sulfur
sodium
hydrogen
Answers: 1
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Which of the following types of electromagnetic radiation has the longest wavelength? a. infrared light b. visible light c. ultraviolet light d. microwaves
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The receptor cells that convert light energy into neural signals are called
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Atoms seldom exist as independent particles in nature a) as single particles, most atoms have low potential energy b) their electronegativity is much lower when they combine with other atoms c) atoms are more stable when they combine with other atoms d) neutral particles are rare
Answers: 2
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