5 . 6 , 56 , 89 i hope that helps
Answer:
Yttrium
Step-by-step explanation:
The atomic number of yttrium is 39. . An isotope with an atomic mass of 193 has 116 neutrons.
Answer:
1: 98
2: 82
3: 98
4: 82
Step-by-step explanation:
So 2 is 82deg then the opposite is also 82 so 4 is 82deg
Then 82+82 = 164deg, and we remain with 360deg-164deg which is = 196.
Since the other two angles will be equal (they are opposite each other) we can decide 196/2 = 98
So 3 and 1 are 98deg