The physical and chemical properties of elements change in predictable ways from one end of a period to another. Which of the following is true based on this feature of periodic table (p 312)?
A Potassium has more protons than Calcium
B An atom of gold is smaller (atomic size) than an atom of platinum
C The noble gases react with everything
D Elements in Group 8 are more reactive than elements in Group 7
PLEASE HELP PLEASE

Hey Elina, before I tell you the answer, let me tell you that this is being forwarded to our school's administration, cheating isn't the key and this is the only way to solve it. I'm sorry but i've archived the past 20 questions you've asked on this platform.

Explanation:

Rather than eating hot cheetos and facetiming your friends such as hi*za and reb***a you should study! Studying is the key to success rather than gossip and other stuff. The answer is wisdom, nothing less and nothing more. Go on the right path to success not the wrong way. Oh and, I ain't never seen two pretty best friends, it's always one of them that gotta be ugly.

that would be b i just took the test : )

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.