Metallic crystals are excellent conductors of electricity due to the existence of positive and negative ions.
2 answers:
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Answer: a)
b)
Explanation: Visible light is a form of electromagnetic wave.
Wavelength is defined as the distance between two successive crests of a wave. It is represented as symbol .
Frequency is defined as the number of complete cycles happening per second. It is represented by the symbol .
Wavelength and Frequency follow inverse relation,
where, c = speed of light =
Wavelength and frequency of a wave is usually expressed in a range.
a)
b)
Vocabulary. Balanced chemical equation: A chemical equation in which the number of each type of atom is equal on the two sides of the equation.
Hope I helped! (´▽`)
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単語。平衡化学反応式：各タイプの原子の数が方程式の両側で等しい化学反応式。
私が助けてくれたらいいのに！(´▽`)
