Answer:
An atom is a particle of matter that uniquely defines achemical element. An atom consists of a central nucleus that is usually surrounded by one or more electrons. ... The nucleus is positively charged, and contains one or more relatively heavy particles known as protons and neutrons. A proton is positively charged.
Answer:
B
Explanation:
Noble gases are in group 18 (neon, argon, etc)
Answer:
4 elements
Explanation:
The four elements would be:
C-Carbon
H-Hydrogen
O-Oxygen
S-Sulfur
Hope this helps :)
Answer:
<h3><u>
<em>The board should be placed at about an 80-88 degrees angle. </em></u></h3>
<u><em>Explanation:</em></u>
<u><em>This will speed the car up and increase its speed as going down the ramp.</em></u>
