Nitrogen makes up 78% of the Earth's atmosphere.
Well, I couldn't get any stable element with mass number of 77. However the closest ones are arsenic with mass number 75 or selenium with mass number 79. Note: All the following elements listed below have isotopes with mass number 77, but are unstable with half life ranging from a few hours to nano seconds: Nickel, Copper, Zinc, Galium, Germanium, Arsenic, Selenium, Bromine, Krypton, Rubidium, Strontium and Yttrium. If you had meant atomic number, then iridium has the atomic number of 77.
Roughly 23% of solar radiation is absorbed or scattered by the Earth's atmosphere, with about 77% reaching the Earth's surface. This process helps regulate the climate and temperature of the Earth by controlling the amount of solar energy that reaches the surface.
The atomic number of iridium (Ir) is 77.The atomic weight of Ir is 192.22 grams per mole.See the Web Links to the left of this answer for a periodic table with more information about this element!
Oxygen makes up about 21% of Earth's atmosphere by volume. This concentration has remained relatively stable for millions of years due to the balance between oxygen production by photosynthesis and consumption through various chemical reactions.
77 degrees Celsius = 170.6 degrees Fahrenheit.
Nitrogen makes up about 77% of earths gasses oxegen is 21% of earths gases corbon dioxide is 1% arogon is 1% as well
the earths atmosphere is 77% nitrogen, 21% oxygen, with traces of argon, carbon dioxide and water.
This is isotope selenium-77.
Atoms are defined by the number of protons in the nucleus; therefore, we can tell what element it is by the number of protons (the information about the neutrons and electrons is unnecessary). An atom with 77 protons is iridium.
11 times 7 = 77
Xenon. Take the atomic mass of 131 and subtract it's protons 54, to get 77 neutrons.
Iridium
Iridium
the element Ir has 77 electrons
Iridium is a metal element. Atomic number of it is 77.
77 kilograms is equal to approximately 169.76 pounds.
One-77