WebNov 1, 1989 · The density of a cometary nucleus is important in constraining the bulk composition and perhaps the conditions of the original accretion. Rickman (1986) was the first to determine a density for Halley's nucleus using the new information with the surprising result of p =~ 0.1 g/cm3. WebSep 4, 2024 · Answer: Density of the He atom = 12.69 g/cm³ Explanation: From the information given: Since 1 mole of an atom = 6.022x 10²³ atoms) 1 atom of He = The volume can be determined as folows: since the diameter of the He atom is approximately 0.10 nm the radius of the He = = 0.05 nm Converting it into cm, we have:
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WebThe number of protons plus neutrons in the nucleus of an atom. Bonding. The process whereby atoms join to other atoms. Compound. ... Density. The mass of an object per unit volume g/cm3. Rock-forming minerals. WebMay 22, 2024 · The usual definition of nuclear density gives for its density: ρ nucleus = m / V = 238 x 1.66 x 10-27 / (1.73 x 10-42) = 2.3 x 10 17 kg/m 3. Thus, the density of … challah bread for rosh hashanah
Oxygen - Periodic Table and Atomic Properties
WebThe radius of the nucleus of hydrogen is on the order of 10 - 13 cm so that its volume is on the order of 10 - 39 cm3 (cubic centimeter); its mass is about 10 - 24 g (gram). … WebJun 1, 2016 · Explanation: For a metal, you need the density, the molar mass, and the crystal structure. Let's calculate the atomic radius of polonium, which has molar mass = 209 g/mol, density = 9.32 g/cm3, and exists in a simple cubic unit cell. WebG/cm3 is a measure of density. Get more information and details on the 'g/cm3' measurement unit, including its symbol, category, and common conversions from g/cm3 … challah bread for kids