In atomic mass units, what is the average atomic mass of the atoms that make up boron (B) ?

A. 2

B. 5

C. 13

D. 10.81

What type of radiation is emitted during a nuclear process in which a nucleas with a greater atomic number is formed?

Which would least strongly attract electrons from other atoms in a compound?

The sum of the ages of a brother and sister is 26. Give an equation that represents this statement using b as the age of the brother and s as the age of the sister

If an unshielded sample of radioactive material emits alpha particles, what effect will it have on a person sitting in the next room? (Assume the wall between rooms is composed of concrete.) None, because the wall will block the radiation.

The osmotic pressure is found to depend on the concentration of the solution. What way, directly or inversely

Atoms of cesium can lose electrons to become cations. how many electrons does a single cesium atom lose? explain your answer.

Which of the following are true about a block of ice at - 10°C as you continue to apply heat.

5. Do you have enough Na2CO3 for 1000 boxes of baking soda? A. Yes Β. No

Determine the concentrations of na2co3, na, and co32 - in a solution prepared by dissolving 1.80 * 10-4 g na2co3 in 2.25 l of water. express all three concentrations in molarity.

Reactivity with vinegar's definition, Chemical property Definition [Reaction with vinegar] [ ... ]