How many electrons should be in an atom's valence shell (with the exception of hydrogen and helium) to become stable?

How much heat is needed to raise the temperature of 6g of water by 20°C?

If a 1-megaton nuclear weapon is exploded at ground level, the peak overpressure (that is, the pressure increase above normal atmospheric pressure) will be 0.2 atm at a distance of 6 km. Atmospheric pressure is 1.013 * 10^5 Pa.

How many milliseconds are in 1 second

One of the reasons that groups on the periodic table are so similar to each other is they have ... Number of Neutrons Number of protons They have the same size Number of valance electrons

How is the voltage drop ΔV across the resistor related to the current I and the resistance R of the resistor? (Use any variable or symbol stated above as necessary.)

Using your own words, what is Net Force? What general statement can you make about the relationship between net force and how fast an object changes it's speed?

Define valence electrons and identify the number of valence electrons in an element using periodic table.

What is the phenomenon thats occours when two waves (blank) while traveling along the same medium

The acceleration of an object increases by the force applied to it and decreases based on it's mass.

Expresa en terminos de la unidad fundamental