Consider the nuclear equation below.

Superscript 235 subscript 92 upper U right arrow superscript 4 subscript 2 upper H e.

What is the nuclide symbol of X?
Superscript 231 subscript 94 upper P u.
Superscript 235 subscript 90 upper T h.
Superscript 239 subscript 94 upper P u.
Superscript 231 subscript 90 upper T h.

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?

Connect the whole numbers on the periodic table to indicate what they represent?