Answer:
Explanation: So, the atomic number is the number of protons present in an atom. For example, Helium's atomic number is 2, meaning it only has 2 protons. In most cases, the number of nuetrons and protons are equal, so Helium (usually) has 2 protons and 2 nuetrons - this is the nucleus. The atomic mass, or mass per nucleon is the proton and nuetron added together, so the atomic mass of Helium is about 4. Therefore, on the periodic table, as the atomic number increases by 1, the atomic mass increases by about 2 (the atomic mass is an average so it's not exact).
The answer to this question is A.) Salad
The correct statement is in statement 4. The two solid carbons has different properties and different crystal structures. The way the carbons are arranged differs for the two which cause the distinct properties of the two. In a diamond, atoms are arranged tetrahedrally while, in graphite, the atoms are arranged in an infinite array but are layered.
Answer:
C. Do the atoms that make up the substance have nuclei that split apart over time
Explanation:
