The number of electrons the element has
P=E
Answer: A,C,D
Explanation:
Element in the same group shared similar chemical behaviour and resemble each other because of the same number of valency electron they have. Example group one element have a valence electron of one.
Because of the same Valency electron they react in a similar way.
Example Group 1 have one valence electron and therefore Ionize readily to form positive electron this occur when they donate their valence electron leading to the formation of electrovalent compounds this is applicable for all group one element. Hence,
Elements in the same group have similar properties and react the same
Also, because element in the same group share the same property in chemical behaviour they are said to belong to one family.
Element in the same group do not have the same energy level because their electron tends to increases down the group and therefore energy level increases and not constant for all elements.
The function of mitochondria and chloroplasts is related to energy. In what way does their function differ? Mitochondria produce energy in prokaryotic cells, while chloroplasts produce energy in eukaryotic cells. ... While the chloroplast get there food from the suns energy through the process of photosynthesis.
Optical telescope issues visible light emitted by a star to make it appear closer. Radio, Ultra Violet and infrared telescope issues the wavelength of light.
The sequence of species in which they disappear, in order from least to most severe would be: B. Threatened-Endangered-Extinct.
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