Q
Structure of Atoms and Periodic Table (8.5 A, B, C):Question 1
Which of the following elements would be classified as a metalloid?
C
C
Select one
OSSA
Boron
Oo oo
ue
Silver
o
Tin

The air exhaled from the lungs of a smoker has a concentration of 24 ppm co. express the concentration as a percent.

Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this

What is the atomic number of an atom that has 6 protons