Atoms Flashcards
1
Q
A neutral atom has the same number of…
A
Protons as Electrons
2
Q
Definition of Isotopes
A
Isotope is an atom of the same element with a different number of neutrons and different masses.
3
Q
Why do different isotopes of the same element react in the same way?
A
> Because chemical reaction involve electrons, and isotopes have the same number and arrangement of electrons
neutrons make no difference to chemical reactivity
4
Q
How do you find out the overall charge?
A
Protons - Electrons
5
Q
How do you find out the relative molecular mass
A
add all the atomic masses
6
Q
How do you find out the relative formula mass
A
add all the atomic masses
7
Q
why do atoms of Be, B, C & Si
A
as they require too much energy to transfer the outer shell electrons to form ions
