1. Sodium forms a positive ion (Na + ). Which change occurs during the formation
ID: 2036100 • Letter: 1
Question
1. Sodium forms a positive ion (Na+). Which change occurs during the formation of this ion?
A sodium atom gains a proton.
A sodium atom gains an electron.
A sodium atom loses an electron.
A sodium atom loses a proton.
2. Which process occurs when an object is charged by induction?
Free electrons are pulled away from their nuclei to flow through an object.
An object produces electrons that are transferred to another object.
Excess electrons move from one object to another so both objects opposite charges.
An object gives another object an opposite charge without losing any of its own charge.
A sodium atom gains a proton.
A sodium atom gains an electron.
A sodium atom loses an electron.
A sodium atom loses a proton.
Explanation / Answer
1.during the process sodium loses an electron
when it loses electron. Protons outnumber electrons denoted by Na+. Initially sodium has
equal number of electrons & protons.
2.when an object with positive charge or deficiency of electrons is placed near another object. The free
electrons of second object get attracted and these electrons arrange themselves or accumulate at the outer surface of the second object. The process of charging one object due to effect of the charge of any untouched object is called INDUCTION. As the
objects do not touch each other there is no loss of
charge. so the fourth option is correct explanation.
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