Answer: A
Explanation:
9 protons correspond to fluorine.
- The first model shows 9 electrons, so the charge is neutral and is thus a fluorine atom.
- The second model shows 10 electrons, so the charge is -1, meaning is a fluoride ion.
Answer is 5A or VA. remember each group represents how many valence electron an atom have.
Answer is A
carrying blood from the body to the heart.
Answer:
Yes, Temperature have an effect on capillary action.
Explanation:
increase in the temperature of liquid results to decrease in density. Hence, this results in the decrease in capillary rise. Also,increase in temperature leads to expansion of the material of capillary, this also decrease capillary rise.
Answer: The atomic number of an atom that has 6 protons, 6 neutrons, and 6 electrons is 6.
Explanation:
Atomic number is defined as the number of protons or number of electrons that are present in an atom.
For a neutral atom:
Atomic number = Number of electrons = Number of protons
Given : Number of electrons = Number of protons = 6
Thus atomic number = 6
Mass number is defined as the sum of number of protons and neutrons that are present in an atom.
Mass number = Number of protons + Number of neutrons
Given: Number of neutrons = 6
Thus mass number = Number of protons + Number of neutrons = 6+ 6= 12.
The atomic number of an atom that has 6 protons, 6 neutrons, and 6 electrons is 6.