I think it's Robert Hooke. I could be wrong, though:/
B. 7
Nitrogen's atomic number is 7.
*an element's atomic number is both its number of protons and electrons*
*to find an element's amount of neutrons, subtract its atomic number from its atomic weight*
Answer:
1 cancerouis cells are bacally a desiese a person gets from like a genetic that there family had or something like that
Explanation:
<span>It took over 200 years for the "cell theory" to be formalized and accepted. Hooke and Leeuwenhoek were early microscopist's.... but at the time the nature of matter, the belief in spontaneous generation, and the idea there were little worlds within little worlds ad infinitinum was popular. The discovery of the periodic table and establishment that atoms were real, the demolishing of spontaneous generation, all happened at the time that Schwann and Schleiden (and others) were working with better microscopes, better ideas about the material world, and better observations...... thus the cell theory.
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DNA is a negatively-charged molecule. Also cell membranes are negatively charged. The problem would be how to push this charges together? I<span>f you put some CaCl2 into the mixture, the CaCl2 will "split" giving 2Cl- and Ca2+. This last ion will be attracted by the negatively charged DNA and will "cover" it, hiding its negative charge. Hope this answers the question.</span>
