Atomic Number of
Protons
Number of
Neutrons
Mass
Number
Number
Element
(symbol)
А
7
B
15
С
26
58
Using the periodic table, complete the table to describe each atom. Type in your answers.
A
В
C
D
E
F

Match term definition ellipse a) diagonal cross section of a cylinder circle b) diagonal cross section through the widest part of a sphere sphere c) cross section parallel to the base of a cone great circle d) shape created when a semi-circle is rotated around the y-axis triangle e) perpendicular cross section of a cone

Which is a chemical property of iron? a. it forms iron oxide (rust) when exposed to moisture and air. b. it is a gray–black metal that is hard to the touch. c. it has a melting point of 2795°f (1536°c). d. it is a good conductor of heat

Why are people not able to scuba dive in the deep part of the ocean