In refraction, when a wave travels from one medium to another it changes speed.
Correct option is A.
Answer:
false
Explanation:
the answer is false bc for a non-polar bond to form the electrons are shared equally...
The mass number is the total number of protons and neutrons within an atom and since we know that the unknown element has 6 neutrons, we can simply subtract the number of neutrons from the mass number to get the number of protons.
17 - 6 = 11
There are 11 protons in this unknown element.
Extra:
The number of protons (+) and electrons (-) are equal in a neutral atom so since you know that there are 11 protons you also know that there are 11 electrons. On the periodic table, the element with 11 electrons is Na or Sodium.
Hope this helps! :)
why did my answer get deleted??
oh yeah i put a link on there- oopsies.
I wont this time!
I got 30!
