Which of the following is NOT TRUE about alpha emissions?

Result in new element whose mass number is two units less than the old element

Less penetrating than beta emissions

Most common in elements with atomic number 83

Written as 42He

Question

Which of the following is NOT TRUE about alpha emissions?
		
Result in new element whose mass number is two units less than the old element
		
Less penetrating than beta emissions
		
Most common in elements with atomic number > 83
		
Written as 42He

anonymous · Answer

I'm pretty sure its the second one @aaronq

anonymous · Answer

am i right ?? @Zale101

zale101 · Answer

Beta particles are more penetrating than alpha particles, thus alpha particles are less penetrating than beta emissions

anonymous · Answer

thank you!

anonymous · Answer

wait so it is true so that cant be the answer

zale101 · Answer

But be-careful, the questionwants to know "Which of the following is $\color{red}{NOT~TRUE}$ about alpha emissions."

anonymous · Answer

my second choice was the third one. but isn't the atomic number 92

zale101 · Answer

Alpha emissions are generally more common in elements with atomic # greater than 83 (>83)

zale101 · Answer

I suggest doing a research regarding Alpha emissions. If you don't have lessons already planned by your instructors with you, then try the search engine.

anonymous · Answer

I did but the rest were true except the second one. so idk what I did wrong @Zale101

anonymous · Answer

wait is the mass number reduced by 4 ?