20 points hurry Complete the following analogy:

Cyanocitta cristata as blue bird:Sialia sialis

A swallow
B blue jay
C cardinal
D parakeet

Adeuteron, 21h, is the nucleus of a hydrogen isotope and consists of one proton and one neutron. the plasma of deuterons in a nuclear fusion reactor must be heated to about 3.02×108 k . what is the rms speed of the deuterons? express your answer using two significant figures.

Which element is least likely to undergo a chemical reaction

To apply in a gold the individual gold atoms are united to each other by means of a metallic bond. how would you use the gold block to determine the atomic radius of a gold atom?