What is atomic radius? Does it decrease going up or down a group?

When solid borax is dissolved in water do you expect entropy of the system to increase or decrease? will the sign of delta s be posoitive or negative?

1. Tonic Bonds are a. Formed when a metal and nonmetal transfer electrons b. Formed when a nonmetal and nonmetal share electrons Formed when a metal forms || bonds with other like atoms d. Formed when noble gases lose electrons

Silver and gold are both considered coinage metals. How does a mile of silver compare with a mole of iron? A) a mole of gold has more atoms B) they both have the same number of atoms C) a mole of silver has more mass D) they both have the same mass

Calculate the volume in mL of 1.03 kg of platinum that has a density of 21.4 g/cm3?

The most abundant gas in the atmosphere is oxygen. True False

Is N2H2 a ionic compound?

What do Lewis dot structures show?

300 grams of a compound which contains only carbon, hydrogen and oxygen is analyzed and found to contain the exact same percentage of carbon as it has oxygen. The percentage of hydrogen is known to be 5.98823%.

What element has the electron arrangement 2,8,4?

If you get pregnant in Dec how long will it take for u to get to second trimester