Question

When an atom that has no charge loses two electrons, it becomes a 1. positive ion. 2. negative ion. 3. positive isotope. 4. negative isotope.

Answer 1

Answer;

1. positive ion

Explanation;

-An ion is formed when an atom gains or looses electrons. A positively charged ion (cation) is formed when an atom looses electrons and a negatively charged ion (anion) is formed when an atom gains electrons. Therefore, if an atom looses two electrons it forms a positively charged ion with a charge of +2.

Answer 2

When an atom that has no charge loses two electrons, it becomes $\boxed{{\text{positive ion}}}$.

Further explanation:

The smallest particle that is building block of matter is known as atom. An atom comprises heavy central part called atomic nucleus and electrons revolve around it in circular orbits. Atomic nucleus consists of positively charged protons and neutral neutrons. Electrons are negatively charged particles.

When electrons are gained or lost from uncharged atoms, species called ions are formed.

Cations or positively charged ions are formed by the loss of electrons from neutral atom. Electrons are negatively charged subatomic particles. So when these particles are removed, atom becomes electron-deficient or positively charged species. These species are known as cations. Consider X to be a neutral atom. Removal of electron from it makes it ${{\text{X}}^ + }$ as shown below.

The formation of cation occurs as follows:

${\text{X}}\left( {{\text{Neutral atom}}} \right) - {e^ - } \to {{\text{X}}^ + }\left( {{\text{Cation}}} \right)$  

Anions or negatively charged ions are formed by the addition of electrons from neutral atom. Electrons are negatively charged subatomic particles. So when these particles are gained, atom becomes electron-rich or negatively charged species. These species are known as anions. Consider Y to be a neutral atom. Addition of electron to it makes it   as shown below.

The formation of anion occurs as follows:

${\text{Y}}\left( {{\text{Neutral atom}}} \right) + {e^ - } \to {{\text{Y}}^ - }\left( {{\text{Anion}}} \right)$  

Since the given atom loses two electrons, it becomes cation or positive ion. hence option 2 is correct.

Learn more:

1. Balanced chemical equation: brainly.com/question/1405182
2. Identify the precipitate in the reaction: brainly.com/question/8896163

Answer details:

Grade: High School

Subject: Chemistry

Chapter: Ionic compounds

Keywords: ions, cation, anion, electrons, loss, gain, atom, neutral, X, Y-, Y, X+, positive ion, negative ion.