Answer:
The correct would be C i think :)
Explanation:
Stay postivie :)
Roughness of the surface and weight of the object.
Answer:
Look at the periodic table of elements
Explanation:
Group 1 is the most reactive and to the right
Group 18 is least reactive and all the way to the left. The rest are in between. The groups go vertical.
You'd be able to solve with this information youre welcome
Answer:
Atoms
Explanation:
Adams can’t be broken down there the littlest piece of matter there is and they make up everything.
Answer: 
Explanation:
General representation of an element is given as: 
where,
Z represents Atomic number
A represents Mass number
X represents the symbol of an element
Beta decay : In this process, a neutron gets converted into a proton and an electron releasing a beta-particle. The beta particle released carries a charge of -1 units.

The given reaction would be represented as:
