Which term best describes all atoms in ionic bonnds? A) stable B) unstable C) positively charged D) negatively charged

The Mendeleev and Moseley periodic charts had gaps for undiscovered elements. Why do you think the chart used by Moseley was more accurate at predicting where new elements would be placed?

What two particles make up the atomic mass of an atom?

Ora had a chemical splash into her eyes. She immediately told her teacher and went to the eyewash station. She then proceeded to wash her eyes out until they no longer hurt, which took about ten minutes.

There are four naturally occurring isotopes of the element chromium. The relative abundance of each is 50Cr - 4.345% 49.946044 amu 52Cr - 83.789% 51.940508 amu 53Cr - 9.501% 52.940649 amu 54Cr - 2.365% 53.

A thermos is presented as an example of an isolated energy system. How could you change the thermos into an open energy system?

A rock formed with 1,000 atoms of a radioactive parent element, but only contains 12.5% of its original radioactive parent atoms today. if the half-life is 1,000,000 years, how old is the rock? (ess 4.6)

What is the volume occupied by 0.106 mol of helium gas at a pressure of 0.99 atm and a temperature of 309 K?

I have 4 moles of CO2. How many molecules of CO2 is this?

The reduced coenzymes generated by the citric acid cycle donate electrons in a series of reactions called the electron transport chain. The energy from the electron transport chain is used for oxidative phosphorylation.

The combining of two atomic nuclei to produce one larger nucleus is called