Depth where light intensity falls to one percent<span> of that at the surface, called the euphotic depth</span>
Overall, an atom is neutral charged. The Bohr model was for years accepted as the final authority because it agrees so well with experiment and observation. In this model an atom consists of a nucleus containing protons and neutrons. The neutrons are zero charge so we can forget them in looking for charges. For each proton (1 positive charge) there is always 1 electron (1 negative charge) in orbit around the nucleus. thus an atom has a equal number of electrons and protons and their net charge is zero.
We can do things to temporarily up set this natural balance (we call this electricity) but the atoms will eventually return to their naturally balanced state
A heterogeneous mixture is a mixture in which its components retain their identity. The correct answer is B.
Answer:
C. Electron-negative charge
Explanation:
The electron is subatomic particle that revolve around outside the nucleus and has negligible mass. It has a negative charge.
Symbol= e⁻
Mass= 9.10938356×10³¹Kg
It was discovered by j. j. Thomson in 1897 during the study of cathode ray properties.
He constructed the glass tube and create vacuum in it. He applied electric current between electrodes. He noticed that a ray of particles coming from cathode to wards positively charged anode. This ray was cathode ray.
Properties of cathode ray:
The ray is travel in straight line.
The cathode ray is independent of composition of cathode.
When electric field is applied cathode ray is deflected towards the positively charged plate.
Hence it was consist of negatively charged particles.
While neutron and proton are present inside the nucleus. Proton has positive charge while neutron is electrically neutral. Proton is discovered by Rutherford while neutron is discovered by James Chadwick in 1932.
Symbol of proton= P⁺
Symbol of neutron= n⁰
Mass of proton = 1.672623×10⁻²⁷ Kg
Mass of neutron = 1.674929×10⁻²⁷ Kg
An atom consist of electron, protons and neutrons. Protons and neutrons are present with in nucleus while the electrons are present out side the nucleus.
All these three subatomic particles construct an atom.
Answer:
It depends.
Explanation:
Hot water will evaporate all on its own. In fact, cold water will also evaporate. It depends on how much water is already in the gas above (i.e., the humidity). If the humidity is 100%, then liquid water is in equilibrium with the gas above it. Water molecules will evaporate at the same rate they condense. Even at cooler temperatures, there is still enough energy in water for one of the molecules to occasionally get bounced out of the container into the air.
I wonder if you may be asking about the boiling point of water. At 100 degrees C, water boils (212 degrees F). These numbers assume 1 atmosphere pressure and on the Earth's surface. As the elevation increases, the boiling point of water decreases. The slight reduction in gravitational pull allows more molecules to escape in the the air.
If you are asking what temperature does water have to be to form steam, that also depends on the temperature and humidity of the airspace.