(answer as quickly as possible for brainliest, : )) what is the name of the group of elements that are human-made and do not occur in nature? a- actinides b- halogens c- noble gases d- nonmetals

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration

Start an single atom tab. observe the decay of polonium-211. after each decay, press the reset nucleus button to watch the process again. write a description of alpha decay for po-211

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line