Boog Substance 1
Substance 2
A
+
3. A company that makes frying pans needs
to create new substance to coat the pans.
The substance must have a high melting
point. To create this new substance, workers
mixed together two substances that melt at
low temperatures in a sealed container. The
diagram above shows the repeating groups
of atoms that make up the two starting
substances.
Substance 1
Substance 2
B
+
Substance 1
Substance 2
с
After mixing, the workers found two
substances that melt at higher temperatures
in the sealed container. (Nothing had
escaped.) Which of the diagrams to the left
shows the repeating groups of atoms that
make up the ending substances?
Substance 1
Substance 2
D
a Diagram A
6 Diagram B
Diagram
17:18

answer

fusion: the energy source of stars. the energy released from the collapse of the gas into a protostar causes the center of the protostar to become extremely hot. when the core is hot enough, nuclear fusion commences. fusion is the process where two hydrogen atoms combine to form a helium atom, releasing energy.

hope it

the atomic mass is the bottom number on the element.

-steel jelly

each  column  of the  table  is called a group. elements in a group share similar properties. groups are  read  from  top  to  bottom. metal. metalloid. nonmetal. solid. liquid. gas. fe. hg. o.  2. 3. 4. 5. 6. 7. 8. 9.  2. beryllium. 9.012. 4.  sodium. 22.990.  11. 3.  magnesium. 24.305.  12.  potassium. 39.098.  19. 4.  calcium. 40.078.  20. i guess  i  

a electronegativity decreases beacuse the size of nucleus is bigger.