NURSING ANM AND GNM

NURSING EXAM QUESTIONS

BIOCHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
An atom that loses an electron becomes which of the following?
A
A negatively charged ion.
B
A neutral ion.
C
A positively charged ion.
D
None of the above
Explanation: 

Detailed explanation-1: -Therefore, an atom that loses electrons becomes a positively-charged ion called a cation.

Detailed explanation-2: -Atoms that lose electrons acquire a positive charge as a result because they are left with fewer negatively charged electrons to balance the positive charges of the protons in the nucleus. Positively charged ions are called cations. Most metals become cations when they make ionic compounds.

Detailed explanation-3: -Neutral atoms can be turned into positively charged ions by removing one or more electrons. A neutral sodium atom, for example, contains 11 protons and 11 electrons. By removing an electron from this atom we get a positively charged Na+ ion that has a net charge of +1.

Detailed explanation-4: -Answer and Explanation: The type of element that typically loses an electron to become an ion is any element of the alkali metal. These elements are found in the first column on the left of the periodic table of elements and include lithium, sodium, potassium, rubidium, cesium, and francium.

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