Why can hydrogen only have two valence electrons?

Why can hydrogen only have two valence electrons? Because hydrogen only has one electron surrounding its nucleus, its valence shell is the first energy shell, which only needs two electrons to be full. Hydrogen tends to form covalent bonds because a single covalent bond will fill its shell. How many valence electrons are present in […]

What if we could see gamma rays?

What if we could see gamma rays? If you could see gamma-rays, the night sky would look strange and unfamiliar. The gamma-ray moon just looks like a round blob – lunar features are not visible. In high-energy gamma rays, the Moon is actually brighter than the quiet Sun. Can gamma rays turn you into the […]

Can you have a growth spurt at 16?

Can you have a growth spurt at 16? The occurrence of teenage growth spurt might vary. Yet, on average, a major growth spurt during puberty usually happens between 8 and 13 years in girls and 9.5 and 14 years in boys (1). Whereas this phase of rapid growth in most girls ends by 15 years […]

What is SI unit of merit?

What is SI unit of merit? Figure of merit is the amount of current been passed in the unit of deflection in a galvanometer. Its SI unit is Ampere per division. What’s the difference between a galvanometer and a multimeter? The galvanometer is converted into the ammeter by connecting the resistance in parallel with the […]

What is the value of the spring constant k?

What is the value of the spring constant k? The letter k represents the “spring constant,” a number which essentially tells us how “stiff” a spring is. If you have a large value of k, that means more force is required to stretch it a certain length than you would need to stretch a less […]

Does an object have no energy moving?

Does an object have no energy moving? Kinetic and potential energies are found in all objects. If an object is moving, it is said to have kinetic energy (KE). Potential energy (PE) is energy that is “stored” because of the position and/or arrangement of the object. And in falling, can exert forces and do work […]

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