I am the simplest element with atomic number 1. I usually have one proton, and one electron,  but no neutron. I am the most abundant element, and I am responsible for the good and the bad. I am the primary fuel source of the sun, but it was me that caused the Hindenburg zeppelin to burn so rapidly. What element am I?

I am the smallest unit of an element. I consist of a nucleus surrounded by electrons. My name comes from the Greek word meaning "indivisible." Who am I?

What is the most abundant element in the Universe?

The elements with atomic numbers 2, 10, 18, 36, 54, and 86 are all, _____HalogensNoble gasesNoble metalsLight metals

Start with the element that has the lowest boiling point. HeliumNeonArgon

The element hydrogen is first on the periodic table, so its atomic number is 1.We can infer from this information that every hydrogen atom must have:one protonone electronone neutron