Is it called "atom splicing" when one is able to manipulate or convert an atom?

Question

when one is able to make one atom into another atom by modifying its number of protons, neutrons, and/or electrons

Answer 1

There are several types of nuclear reactions that can change its number of protons, neutrons. A nuclear reaction is any process in which two nuclei or nuclear particles collide, to produce different products than the initial products.

Here are a few examples.
- Fusion: two light nuclei join to form a heavier one.
- Fission: a very heavy nucleus splitting into two either spontaneously or after absorbing a neutron
-Transfer: some or more nucleons are transferred between the projectile and target.
- Spallation: a nucleus is hit by a particle with sufficient energy to knock out several small fragments.
- Transmutation: a high flux of neutrons causes absorption in the target which then desintegrate into something more stable.

Answer 2

It is called "Nuclear Fission"
Uranium 92U235 + n = 92U236 (unstable)
It breaks into two atoms e.g. Pb + Sr + 2.5 n + energy
The sum of the nucleons will be always 92.