The answer should be; 11
The atomic mass number is found by combining the number of protons and neutrons
Hope this helps :)
For O3, it will have an angle of <120. There are three bonding domains on the central O. 2 bonds and one lone pair. So you start with a bond angle of 120, but the lone pair takes up a little more space than the bonds. so the angle is a little less than 120.
<span>SCl2 will be <109.5. There are 4 bonding domains on S (2 bonds and 2 lone pairs). So the angle starts at 109.5 but due to lone pairs, it is less (similar to a water molecule) </span>
<span>SOCl2 will be <109.5 similar to SCl2 but 3 bonds and one lone pair on eh central atom.</span>
An element is a pure substance that has not been combined with anything, whereas a compound is something that is made of two or more substances (elements). an element would be Gold, and Silver, and a compound would be table salt or water.
Temperature is the measure of kinetic energy and when temperature increases so does the particles. heat is the measure of the flow of thermal energy and how to easily understand this is when u feel hot, u adjust the temperature so it’s cooler :)
Hello there!
Hydrogen has one proton because the number of protons in an atom is equal to the atomic number of the element. S
ince hydrogen's atomic number is 1, it has one proton.
I hope that's help !