What is neon: metal, non-metal, or metalloid?

Which element has 50 electrons

In which type of chemical bonding are the electrons most equally shared between atoms?

Xiang has created an email that contains a number of acronyms and proper nouns. He would like to use Spell Checker quickly without modifying these entries or being notified for successive use of the same word or phrase.

A sample of gas has a volume of 4.4 liters when the pressure is 3.3atm. What is the volume when the pressure is reduced to 2.2atm, if all other remain constant

Oxygen gas reacts with powdered aluminum according to the following reaction: 4Al (s) + 3O2 (g) →2Al2O3 (s) What volume of O2 gas, measured at 787 mmHg and 21 ∘C, is required to completely react with 55.

Which of these is a property of bases? They produce hydrogen gas when reacted with metals. They turn litmus paper blue. They feel sticky. They taste sour.

After Pangaea broke up, North America became part of what?

What the different betwen observe and reference

How many moles are in 12.5 g of H2O

How do the atomic number and the number of protons relate to one another? The atomic number tells us the number of protons The atomic number is protons + neutrons They do not Electron Cloud