Answer:
118
Explanation:
The discovery of the 118 chemical element known to exist us of 2021
Answer:
C- A proton has about the same mass as a neutron .
Explanation:
In an atom such as a carbon atom, the masses of the proton and neutrons are the same.
The mass of the electrons is very negligible.
- Protons are the positively charged particles in an atom
- Neutrons do not carry any charges
- Both protons and neutrons have similar masses.
- They contribute the bulk of the mass of the atom.
- The electrons carry negative charges and they have negligible masses.
The mass of protons and neutrons are similar.
Answer:
2K + Br2 --> 2KBr is the answer
A) Temperature does not affect reaction rate
The answer is the 3rd choice
