b. C
c. Si
d. P
Answer: Option (a) is the correct answer.
Explanation:
A metal is a substance which loses electron(s) in order to attain stability.
For example, sodium is an alkali metals with atomic number 11 and its electronic distribution is 2, 8, 1.
So, in order to attain stability sodium will readily lose 1 electron and forms ion.
Whereas non-metals are the substances which gain electron(s) in order to attain stability.
For example, atomic number of carbon is 6 and its electronic configuration is 2, 4.
To attain stability a carbon atom shares it 4 valence electrons with another atom.
Thus, we can conclude that out of the given options, Na is a metal.
To find the number of jellybeans we use unit conversion.
What belongs in the green box?
865 grams x 1 bean
Explanation:
To find the number of jellybeans, you need to use unit conversion. The green box should contain the following expression:
865 grams / 0.328 grams per bean
This expression represents the total mass of all jellybeans (865 grams) divided by the mass of one jellybean (0.328 grams per bean), which gives you the number of jellybeans.