As the elements in group 17 on the periodic table are considered from top to bottom, what happens to the
atomic radius of each successive element and why
does this occur?
A) Atomic radius increases because there are less
electron shells
B) The atomic radius increases because there are
more electron shells
C) The atomic radius decreases because there are
more electron shells
D) The atomic radius decreases because there are
less electron shells

What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?

What are the three major branches of natural science? • earth and space science, life science, physical science •earth and space science, physical science, chemistry •physical science, life science, chemistry •life science, chemistry, physics

16. why must the number of electrons lost equal the number of electrons gained in every redox reaction? use 3 – 4 sentences in your own words to address this question. 18. what type of radiation is emitted when chromium-51 decays into manganese-51? show the nuclear equation that leads you to this answer. 19. a radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. what was the identity of the original nucleus? show the nuclear equation that leads you to this answer.