Question

After an atom has lost an electron it becomes a/an ______ and has a _______ charge. cation, positive anion, negative isotope, negative anion, positive

Answer 1

After an atom has lost an electron, it becomes a cation and has a positive charge.

Further Explanation:

The atom is composed of three parts, protons, electrons, and neutrons. The neutrons are neutral, and the protons and electrons are charged particles. The electrons are negatively charged particles of the atom. Electron number determines only the electrical charge of the atom.

There are two important kinds of electrical charges on earth:

• Positive charge: They repel other objects that positively charged.

• Negative charge: They attract other objects that negatively charged

The number of an electron is lower than the proton than the atom is positively charged, whereas the number of an electron is greater than the proton than the atom is negatively charged. When an atom has lost its electron that it is considered as cation because it has a lower number of an electron than the proton.

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Answer Details:

Grade: High School

Subject: Biology

Chapter: Biomolecules

Keywords:

Atom, negative, positive, charge, object, attract, repel, neutron, electron, neutral, number, proton, higher, cation, determine, particle.

Answer 2

Answer : After an atom has lost an electron it becomes a cation and has a positive charge.

Explanation :

Ion : When an atom loses or gain an electron then it becomes an ion. Ions are of two types that are cation and anion.

When an atom gains an electron then it becomes an anion that has negative ion or charge.

When an atom loses an electron then it becomes a cation that has positive ion or charge.

For example : The sodium metal (Na) has 1 valence electrons so, it can easily lose one electron and it becomes cation that has positive charge, $Na^+$.

The chlorine (Cl) has 7 valence electrons so, it can easily gain one electron and it becomes anion that has negative charge, $Cl^-$.

As per question, when an atom lost an electron then it becomes a cation an has a positive charge.

Hence, after an atom has lost an electron it becomes a cation and has a positive charge.