I think it is high pressure / gravity and high temperatures
Answer:
False
Explanation:
Protons are positively charged, electrons are negatively charged, and neutrons have no charge.
B. a sound wave that he could just barely hear
Answer:
As you move across a period, the atomic mass increases because the atomic number also increases
Explanation:
When the atomic number increases, this means that there are more protons and neutrons that add to the atomic mass of an atom.
