Question : Which among the following will be a negative ion?
Option 1: If it has more electron than protons
Option 2: If it has more electrons than neutrons
Option 3: If it has more protons than electrons
Option 4: If it has more protons than neutrons
Correct Answer: If it has more electrons than neutrons
Solution : The correct answer is If it has more electrons than neutrons
Negative ions, or anions, arise when an atom or molecule gains one or more electrons. We call it electron gain. Certain elements are more likely to attract electrons than others due to their electron configuration and position in the periodic table. Elements having nearly whole or half-filled valence electron shells may have a high electron affinity. When these atoms come into contact with electrons, they can easily attract them, resulting in a more stable electron configuration.
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Question : What does it mean when an object has a positive charge?
Option 1: It has more electrons than protons.
Option 2: It has more protons than electrons.
Option 3: It has more neutrons than electrons.
Option 4: It has more neutrons than protons.
Question : Electrons in the highest energy level of an atom are called ________.
Option 1: Valence protons
Option 2: Orbital protons
Option 3: Valence electrons
Option 4: Orbital electrons
Question : An electron microscope gives higher magnifications than an optical microscope because:
Option 1: The velocity of electrons is smaller than that of light.
Option 2: The wavelength of electrons is smaller as compared to the wavelength of visible light.
Option 3: The electrons have more energy than the light particulars.
Option 4: The electron microscope uses more powerful lenses.
Question : Which of the given responses would be a meaningful order of the following?
1. Crop 2. Root 3. Stem 4. Seed 5. Flower
Option 1: 2 3 5 1 4
Option 2: 2 4 5 1 3
Option 3: 2 3 4 1 5
Option 4: 4 2 3 1 5
1.Rivulet 2.Ocean 3.Tributary 4.River 5.Sea 6.Rain
Option 1: 6 5 3 1 2 4
Option 2: 6 4 1 3 5 2
Option 3: 6 1 3 4 5 2
Option 4: 5 6 1 3 2 4
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