Answer: The correct answer is true, atoms have the same amount of protons and electrons
Answer:
Air is a good insulator because the molecules are far apart. This reduces mobility of air molecules hence conduction is difficult.
Explanation:
For other statements :
- All the suns radiations are not reflected back to space because the ozone layer of the earth's atmosphere which regulates the intensity of radiations from the sun, it is transparent and porous hence heat and light rays from sun enter earth.
- Work is only done by potential energy when the body is under free fall and experiencing gravitational force, but for a body moving without influence of gravity, work is done by the force applied and the distance moved by the body. This force is called a <em><u>c</u></em><em><u>o</u></em><em><u>n</u></em><em><u>s</u></em><em><u>e</u></em><em><u>r</u></em><em><u>v</u></em><em><u>a</u></em><em><u>t</u></em><em><u>i</u></em><em><u>v</u></em><em><u>e</u></em><em><u> </u></em><em><u>f</u></em><em><u>o</u></em><em><u>r</u></em><em><u>c</u></em><em><u>e</u></em><em><u>.</u></em>
- Total mechanical energy is given by
= <em><u>Kinetic energy + Potential energy</u></em>
Answer:
Carbon has 6 electrons in the outside and 6 protons inside.
Explanation:
Carbon has a mass number A = 12 and an atomic number Z = 6. The latter means that the element has 6 protons inside and 6 electrons in the nucleus that neutralize said positive charge.
Answer:
2800 torr
Explanation:
- Use Boyle's law
- Rearrange formula to fit problem
- Hope this helped! Please let me know if you would like steps or want to learn how to do this.