Explain the difference between valance electrons and the other electrons

Which statement is correct about an element's identifying spectrum?

Describe the reactions during the electrolysis of waterA) Oxygen is reduced and hydrogen is oxidized. B) Oxygen and hydrogen are both oxidized. C) Oxygen and hydrogen are both reduced. D) Oxygen is oxidized and hydrogen is reduced.

How are molecules and atoms different?

In a polar covalent bond, A) electrons are not shared equally between atoms B) electrons are shared equally between atoms C) a cation is bonded to an anion D) electrons are transferred between atoms

What improvements have been made in modern farming? Select all that apply. 1. machines can do more work over less time 2. better seeds sprout and grow much more quickly 3. trains can transport food over long distances faster 4.

Give 3-5 pieces of evidence to support why cloning is bad.

Nitrogen combines with oxygen to form nitrogen monoxide (no) and nitrogen dioxide (no2). a sample of no consists of 1.14 g of oxygen and 1 g of nitrogen.

The modern periodic table reflects many improvements to Mendeleev's original table. If Mendeleev's table was incorrect, why is it still studied in chemistry classrooms today?

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Explain how the nettle is adapted for defence and protection