I don't understand the question
Can you elaborate further
B, they belong to group 1
A: Li is period 2 and Na is period 3
C: Na has one more electron shell
D: Not related to how it is spelled
Answer:
BRAINLIEST PLZZZ
Explanation:
All types of organisms are capable of reproduction, growth and development, maintenance, and some degree of response to stimuli.
Answer:
Cost to supply enough vanillin is
Explanation:
Threshold limit of vanillin in air is per litre means there should be of vanillin in 1L of air to detect aroma of vanillin.
So,
So amount of vanillin should be present to detect =
As cost of 50 g vanillin is therefore cost of vanillin =
.150 = 3
20.20 = 4
25.00 = 4
If a 0 does not have a number or a period after it, it is not significant.
If the 0 is behind the decimal point, it is always significant.