Category: Physics

Which has the highest first ionization energy? helium Which of the following is highest ionization energy? Neon Which has highest second ionization energy? Hellium has the highest ionization energy. Which has higher ionization energy Na+ or Mg+? In the second case (When an electron has been removed from both) Na+ becomes stable while Mg+ does […]

What does a lobbyist do exactly? Professional lobbyists are people whose business is trying to influence legislation, regulation, or other government decisions, actions, or policies on behalf of a group or individual who hires them. Individuals and nonprofit organizations can also lobby as an act of volunteering or as a small part of their normal […]

Can you please look into it? Sometimes, when we lack the time, we ask someone else to look into a problematic situation for us. Both of the given sentences — “Can you please look into it?” and “Please look into it” — are ways of asking for someone’s help with the investigation. Both use the […]

Does smoking change sperm DNA? How does smoking affect sperm? Men who smoke have decreased sperm concentration, decreased motility (how sperm swim), fewer normally shaped sperm, and increased sperm DNA damage. Do cigarettes alter your DNA? While we’ve long known that smoking is linked to cancer, this new research allows scientists to quantify the molecular […]

Can a meteor hit the sun? No asteroids have ever been observed to hit the Sun, but that doesn’t mean that they don’t! Orbits within in a Kirkwood gap are not stable, and any asteroid whose orbit wanders into such a region will eventually get pulled into a different orbit, which may take it into […]

Is it true that nonmetals increase in reactivity when moving from left to right? The reactivity of nonmetals increases when moving from left to right in the periodic table. They have a high attraction for electrons and tend to gain electrons. The most reactive nonmetal element is fluorine. What does xenon mean in Greek? Derived […]

What is the speed of light in a medium of refractive index n? The refractive index can be seen as the factor by which the speed and the wavelength of the radiation are reduced with respect to their vacuum values: the speed of light in a medium is v = c/n, and similarly the wavelength […]

What are the three steps of seafloor spreading? Terms in this set (7) Magma comes out of the rift valley. Magma cools to rock and hardens. Rock is pushed away as new rock is formed at MOR. Oceanic crust and continental crust meet at the trench. Oceanic crust bends down under the continental crust. Gravity […]

Who are some of the major developmental psychologists? Influential developmental psychologists from the 20th century include Urie Bronfenbrenner, Erik Erikson, Sigmund Freud, Jean Piaget, Barbara Rogoff, Esther Thelen, and Lev Vygotsky. Which country is best for psychologists? Top 9 Places to Study Psychology Abroad Austria. Home to the father of psychoanalysis, Sigmund Freud, Austria has […]

Is calcium carbonate a ionic compound? Calcium carbonate (CaCO3) has ionic bonding between calcium ion Ca2+ and a polyatomic ion, CO2−3, but within the carbonate ion (CO32-), the carbon and oxygen atoms are connected by covalent bonds (shown above). Why calcium carbonate has both ionic and covalent bond? Calcium carbonate is another example of a […]