The answer would be wavelength, so b
Answer:
9.01 grams
Explanation:
~18.02 grams are in 1 mole of water so you'd divide that in half to get 9.01 grams.
For cm to m, you need to divide by 100 to get m:
26cm/100= 0.26m
For hr to min, you need to multiply by 60 to get min:
4hr x 60= 240min
For km to m, you need to multiply by 1000 to get m:
3.25km x 1000= 3250m
For ft to in, you need to multiply by 12 to get in:
5ft x 12=60in
So we have:
0.26m
240min
3250m
60in
When, it donates electons.
as for example take
NaCl ( sodium chloride)
it's an ionic compund,
that means it is formed by donating or gaining electrons
Na is writen first than, it must be electropositive i.e it has donated electons which made it positive and the clorine gains electron so it's electronegative.
Na is positive because
as we know it's atomic number is 11 that means it has 11 protons and 11 electrons
now, when it donate electon it has, greater number of protons whose change is +ve so the atom becomes overall positively charged ion or cation.
and something same happens in clorine and because it gains one electron and the number of electrons increase in it by 1 whise charge is -ve so, the atom becomes negatively charged ion or anion which has a -1 charge.
