Which element is non-metallic and a gas at room temperature? a. Nitrogen (N)
(E) Silicon (Si)
b. Potassium (K)
d. Sodium (Na)

How did planetesmals form planets? a. they broke apart into smaller chunks. b. they collided and stuck together. c. they cooled and pulled ice together. d. they began to rotate.

26. of of (aq) by (aq) is . if 50.00 ml of 1.05 m is to 25.00 ml of 1.86 m ,at be? ( no is toina of aof) , h.. (p. ). . .

How are isotopes of the same chemical element alike? how are they different?