How does a barium atom become a barium ion with a #2^+# charge?

Answer 1

See explanation below.

Basically, an atom becomes an ion when it "steals" electrons from another atom or when another atom "steals" electrons from it. Barium becomes an ion with a #2^+# charge when it reacts with another atom of another element that steals 2 electrons from it.
For instance, in the reaction represented below, solid barium reacts with hydrochloric acid to produce aqueous barium chloride and hydrogen gas: #Ba_((s)) + 2HCl_((aq)) -> BaCl_(2(aq)) + H_(2(g))# In this redox reaction, barium starts as a neutral solid but becomes an aqueous ion with a #2^+# charge. Hydrogen begins as an aqueous ion with a #1+# charge and becomes a neutral gas. Thus, two hydrogen atoms steal a total of two electrons from one barium atom, resulting in the formation of neutral hydrogen gas and a barium ion with a #2^+# charge.

When an atom loses one or more electrons, it is said to be oxidized; when an atom gains one or more electrons from another, it is said to be reduced.

Sign up to view the whole answer

By signing up, you agree to our Terms of Service and Privacy Policy

Sign up with email
Answer 2

By losing two electrons from its outermost shell, a barium atom becomes a barium ion with a 2+ charge, meaning that it now has more protons than electrons and a net positive charge of 2+.

Sign up to view the whole answer

By signing up, you agree to our Terms of Service and Privacy Policy

Sign up with email
Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

Not the question you need?

Drag image here or click to upload

Or press Ctrl + V to paste
Answer Background
HIX Tutor
Solve ANY homework problem with a smart AI
  • 98% accuracy study help
  • Covers math, physics, chemistry, biology, and more
  • Step-by-step, in-depth guides
  • Readily available 24/7