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Nearly all the normal matter in the universe is either hydrogen or helium. If you pick an atom at random from the universe, the odds are better than 9 out of 10 that it's hydrogen, and well over 99 out of 100 that it's either hydrogen or helium.
By mass, the universe is about 74% hydrogen, 24% helium, 1% oxygen, and everything else combined makes up about 1%.
If you mean "on Earth" ... those numbers get skewed quite a bit by, basically, gravity. The Earth's gravity is too low, and its temperature is too high, to hang on to most of the hydrogen and helium, so oxygen is by far the most common element in the crust. Iron (fifth most common by mass in the universe overall) is heavy, so it tends to "sink" to the core, leaving "light" elements like silicon and aluminium to be the second and third most abundant materials in the crust.
What else can I help you with?
What are Patterns in element properties?
The main distinction is into metals and non-metals.
What are elements called when they are found in nature?
Elements found in nature are referred to natural elements, as opposed to synthetic, which are man made.
What are the nature and elements of oral communication?
the nature is broadest sense in physical nature and the elements is verbal vocal visual
What the two main elements that make up most of the core?
The two main elements that make up most of Earth's core are iron and nickel. These heavy metals are believed to be the primary components that give the core its dense and solid nature.
What form are most elements in nature?
Most elements in nature are found in the solid state.
How many elements start naturally in nature?
how may elements occur naturally in nature
What elements have more predictable properties main group elements or transition elements?
main group elements
Did halogens frequently occur in nature as free elements?
Yes, the halogens did occur in nature as free elements.
Which of the general statements below is true about main group group A elements?
Main group group A elements are also known as representative elements and they include elements in the s and p blocks of the periodic table. They typically form ions with a positive charge by losing electrons and tend to be found in nature in their elemental forms. These elements are involved in a wide range of chemical reactions due to their relatively low ionization energies.
What were the main elements of hunters and gatherers culturee?
The main elements of hunter-gatherer culture included small, mobile communities, reliance on hunting and gathering for food, living in harmony with nature, oral traditions for passing down knowledge, and egalitarian social structures with shared responsibilities.
Do molecular elements exist in nature?
Yes, The elements hydrogen, nitrogen, oxygen, and sulfur are all molecular elements that exist in nature. Due to their reactivity, it is rare to find the halogens and phosphorus in their elemental forms in nature.
What do you find least of in nature elements compounds or mixtures?
Pure elements are found least in nature compared to compounds and mixtures. Most elements exist bonded to other elements to form compounds or mixed with other substances to form mixtures in nature. Pure elements are less common due to their tendency to react and combine with other elements.
