First one should be true because neutrons don't carry a charge therefore they won't affect the overall charge of the atom.
Second one should be positively charged, dense, and contains most of the mass of the atom
By late 1920s most alcohol was made at home. Alcohol was made at home is the illegal
'stills' because deaths from purposely poisoning alcohol went up from 98 in
1920 to 760 in 1926. The homemade
alcohol was known as moonshine.
Gel electrophoresis is a method of genetic analysis which involves seperating segments of DNA based on their size and charge.
It involves cutting DNA with various enzymes, then placing the DNA in an agarose gel. An electrical current is then run through the gel. Because DNA is a polar molecule the DNA segments will travel through the agarose cell as the current is applied. Larger fragments will travel shorter distances than shorter fragments. Two plates with 2 different DNA samples will be conducted and the orientation of the DNA strands will be used to make an analysis by comparing the 2 plates.
A rock that forms when magma hardens beneath Earth's surface is called an intrusive igneous rock.