Multiple Choice
What does the sodium/potassium (Na+/K+) pump transport across the cell membrane?
2. Atoms & Elements
Ions
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What is a hydrogen ion?
A
A negatively charged ion formed when a hydrogen atom gains an electron
B
A positively charged ion formed when a hydrogen atom loses its electron
C
A neutral atom with equal numbers of protons and electrons
D
A molecule consisting of two hydrogen atoms bonded together
Verified step by step guidance1
Understand that a hydrogen atom consists of one proton and one electron. In its neutral state, it has no net charge.
Recognize that a hydrogen ion is formed when a hydrogen atom loses or gains an electron.
Identify that when a hydrogen atom loses its single electron, it becomes a positively charged ion, known as a proton (H⁺).
Clarify that a negatively charged ion would result from gaining an electron, which is not the case for a typical hydrogen ion.
Conclude that a hydrogen ion is a positively charged ion formed when a hydrogen atom loses its electron, resulting in H⁺.
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