What element's produced when a uranium nucleus ejects an elementary particle composed of 2protons & 2neutrons?

Question

ummm....ya, ...this is a question for physics, and i really dunno WUT exactly 2 do (I'M CONFUSED!!!)

sooooo.. pleeeaaaseee answer, (and if u could, explain y the answer IS the answer.)

and ummm ... The atomic number of uranium is 92, so that's how many protons it has.

but pleeeeaaaaaasseee ANSWER!

and i'll choose "best answer" for the best answer (the fastest person to answer, but clearly explained.)

THANX!!!!!!

Answer 1

Atomic number is the number of protons so (92-2 = 90) which means new element has atomic number of 90

Atomic mass is number of neutrons plus number of protons so subtract 4 from the atomic mass of Uranium to give you the new element's mass.

Which isotope of Uranium are you starting with?

If you start with U 92/ 238 you end up with Thorium 90/234

Do a web search for "alpha decay" and you'll get lots more interesting information.

Answer 2

An elements atomic number is the number of protons in its nucleus.
So if one alpha particle (atomic number 2) is ejected from uranium (atomic number 92) you will have an element with an atomic number of 92-2 = 90
looking this up on the periodic table we find that it is Thorium.
So the answer is Thorium, or an isotope of thorium.

Answer 3

When U 238 releases particle that is composed from 2 protons & 2 neutrons ( alpha particle ) Th 234 is produced.

Below is source where is that detailed :

Answer 4

Element 90, Thorium
An element is defined by the number of protons it possesses.

Answer 5

a diffrent isotope of thorium