How do the melting points of helium, lithium, beryllium, and carbon relate to their positions on the periodic table?
A as the number of protons increases, the melting point decreases
B as the number of protons decreases, the melting point decreases
C as the number of protons increases, the melting point increases
D as the number of protons decreases, the melting point increases

In what way do investigations build scientific knowledge? the results of investigations lead to questions that cannot be tested. they reflect the opinions and social values of scientists, ensuring valid information. the results of investigations lead to new questions, which lead to new investigations. they are not influenced by the research of earlier scientists, so they are able to address gaps in understanding.i