can scientists actually measure the mass and relative abundance of isotopes of an element by counting each particle and measuring their masses? [ i think no because it would be too small ]

if not, how could a scientist measure the mass and relative abundance of isotopes of an element? [ please help me! ]

thanks for helping me
have a happy halloween! :D

One can gassify the element, ionize it, then accelerate it in an accelerator, differing masses will move differently.

Or

one can vibrate the atoms in a changing (oscillating ) electric field, and find resonance. Different masses resonate at different frequencies.

or other methods.

what is honors chemistry? sounds hard

Honors Chemistry is another name for advanced placement (AP) chemistry.

It is a high school level chemistry course that is usually more rigorous and covers more advanced topics compared to a regular chemistry course. The curriculum is designed to prepare students for college-level chemistry and may involve additional coursework, more challenging assignments, and a faster pace of learning. Initially, you may find it challenging, but with dedication and effort, you can excel in the course. Is there anything else I can help you with?