What group of elements has the most stable arrangement in their outer energy level?
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Ответ:
Noble gases
Ответ:
cation, 2+
a cookie made from flour, eggs, sugar, butter, and chocolate chips.
melting point is a physical property of matter because when a substance melts, it changes state from a solid to a liquid but is still the same substance.
melting point is the temperature at which a substance changes from a solid to a liquid state. it is a physical property because measuring melting point does not change the identity of the substance.
a potassium ion will form a 1+ charge because it will have more protons than electrons.
the electrons would repel each other because they have the same charge.
explanation: