Ion or neutral atom?

[desmond iking]

Homework Statement

An atom of 28_13 AI decays into stable nuclide 28_14 Si by emitiing a beta particle.
What's 28_14 Si ?
the ans given is positive ion?

in my opinion, it should be a neutral atom... which is correct?

Homework Equations

The Attempt at a Solution

 

[Doc Al]

What's your reasoning? Hint: What's a beta particle?

 

[desmond iking]

If the 28 _13 nucleus decay then the positive ion is formed? Am I right? But here's an atom not nucleus

 

[haruspex]

If the 28 _13 nucleus decay then the positive ion is formed? Am I right? But here's an atom not nucleus

Think about conservation of charge. If a beta particle is emitted, what does that tell you about what remains?