100%-64% to obtain the remaining% of the isotopes
= 36%
then,
atimic weight= (64×51) + (36×51)
=5100 amu
Answer:
C.) They have fewer electrons than protons
Explanation:
Charges on ions are determined by the ratio of electrons to protons. Neutral elements have the same number of protons and electrons. Remember: protons have a positive charge and electrons have a negative charge. However, based on the amount of electrons these elements have, some are more or less willing to give up their electrons to participate in ionic bonding. Potassium usually gives up 1 electron because this satisfies the octet rule. By removing this electron, the element has more protons than electrons, giving it an overall +1 charge.
Answer:
B. kilogram
Explanation:
The basic SI unit of mass is the kilogram.
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<3
Answer:
The elements in each group have similar chemical properties.
Explanation:
This is correct because all elements in a group have a similar electron configuration in the outer most shell, therefore they will have similar chemical properties.
Answer:
Fixed
Explanation:
A solid is the substance that have fixed shape and size. For example: Ice,Wood etc. They have a fixed shape and volume.