Oxygen and Fluorine Family
oxygen
8
O
15.999 fluorine
9
F
18.998
sulfur
16
S
32.065 chlorine
17
Cl
35.453
selenium
34
Se
78.96 bromine
35
Br
79.904
tellurium
52
Te
127.60 iodine
53
I
126.90
polonium
84
Po
[209] astatine
85
At
[210]

When traveling from oxygen to sulfur to selenium, through this group in the periodic table, what is changing?

Which is an example of gaining a static charge by conduction? a) rubbing a balloon against your hair. b) shuffling your shoes across a carpet. c) bringing a charged rod near an electroscope. d) touching your car on a cold day and getting a shock.

If a substance is in the gas phase, which of qualities of the gas will stay constant? a: volume b: mass c: shape d: position of particles

The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.