To make its second-highest energy level be its valence energy level (being filled with an octet of electrons) and possess a more stable electronic arrangement, a strontium atom could form an ionic bond with two oxygen atoms. true or false ？

A100-watt light bulb radiates energy at a rate of 100 j/s. (the watt, a unit of power or energy over time, is defined as 1 j/s.) if all of the light emitted has a wavelength of 525 nm , how many photons are emitted per second?

In an investigation that uses the scientific method, which step immediately follows making a hypothesis? o summarizing the results o asking a question o making observations designing an experiment mark this and retum save and exit next submit

How hot is the suns corona? (integrated science)