Nº p*
Part 2 - Atomic Number Atomic Mass Mass Number
Fill in the blanks in the table below. All these elements below are NEUTRAL
Complete Name Complete Symbol
Atomic Mass
Atomic
(Complete it (Complete it
Number Mass Number
if it is incomplete) if it is incomplete)
1
Helium -
2
25 Mg
35
2
30
80
125
3
GA
45
5
Aluminum - 24
56
6
26
84
7
20
Kr
8
17
9
10
Uranium - 235
47
65
Na
11
31
12
21
10
13
14
32
15
Nickel - 61
26
Fe
16
24
65
29
17
18
52
13Cа
19
21
20
15
21
Potassium
14
22
76 AS
119
23
Sn
24
25
Barium - 136

Two nitro no2 groups are chemically bonded to a patch of surface. they can't move to another location on the surface, but they can rotate (see sketch at right). it turns out that the amount of rotational kinetic energy each no2 group can have is required to be a multiple of ε, where =ε×1.010−24 j. in other words, each no2 group could have ε of rotational kinetic energy, or 2ε, or 3ε, and so forth — but it cannot have just any old amount of rotational kinetic energy. suppose the total rotational kinetic energy in this system is initially known to be 32ε. then, some heat is removed from the system, and the total rotational kinetic energy falls to 18ε. calculate the change in entropy. round your answer to 3 significant digits, and be sure it has the correct unit symbol.

Oil rich countries in the middle east cover about 4% of earths total land area but prossess about 48% of the worlds known oil reserves what is the main reason for high concentration of reserves in this part of the world

Ab c or d ? i’m not sure what the answer is