Answer:
<h2>
total no. of electron present in Valency shell is called valency electron </h2><h2>___________________</h2>
<h2>valency shell is that in which last electron is present</h2>
4 grams , mass cannot be created or destroyed. it has to be the same on both sides of the equation
Answer:
I'm sure it's option A. Cast Fossil
Answer:
I'm pretty sure its stimulus
