What element forms an ion with an electronic configuration of [kr] and a - 2 charge?

Which statement about fission is correct? Fission power has few risks. Fission is the combining of nuclei to form new atoms. Fission is the joining of neutrons by extreme pressure.

In the periodic table, the period number indicates A. the number of dots shown on the Lewis dot diagrams for elements in that period. B. the number of valence electrons for elements in that period. C.

While traveling, an airplane passenger placed a sealed bag of potato chips in his checked luggage. When he opened the luggage, he observed that apparently the bag had exploded during the flight and potato chips were everywhere in his luggage.

Given an unknown mixture consisting of two more substances, explain how could you determine whether that mixture is a true solution, a colloid or a suspension

Iodine, I2, is a solid at room temperature but sublimes (converts from a solid into a gas) when warmed. What is the temperature (in K) in a 71.4 mL bulb that contains 0.276 g of I2 vapor at a pressure of 0.478 atm?

Collagen is made of fibers and is found in tendons and cartilage. Collagen contributes to meat toughness and is, therefore, an example of which type of protein?

1. Why does CH30 evaporate faster than water?

How does concentration affect our daily lives in science?

How many nitrogen atoms are in 2.79 mo. of NH3

What is the chemical formula for polysaccharide?