an atom that has 18 protons, 18 neutrons and 20 neutrons. This atom has mass number of 38
mass number is calculated as number of protons + number on neutrons
therefore the mass number of the atom = 18+20= 38
Since the atom has a electronic configuration of 2.8.8,the atom cannot be negatively or positively charged because it is stable.
The atomic number of the atom is 18 since atomic number is equal to number of protons
Noble gases are the least<span> reactive </span>elements<span> in the periodic table because they have a full valence shell. Examples are, Argon, Neon, Xenon, and Helium</span>
Answer:
I make not know because im the 7th grade but Im give my worthy guess I now this its endothermic
Explanation:
Explanation:
False, they also provide oxygen
Answer:
The smallest possible inside length of the tank is 
m.
Explanation:
As we know that
Thus, volume of 
liter tank is also equal to 
cubic meter
The volume of a cube is equal to 
, where, x is the length of the side of the cube
With the give condition,
Solving the above equation, we get -
The smallest possible inside length of the tank is m.
