Chemistry, 03.04.2020 19:27 dylan102247
The number of protons, called the atomic number is shown , but the mass number is missing from the symbol above If the element has 16 neutrons what is the missing mass number ?
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Modern weaponry has increased the number of deaths in wars and violent conflicts.
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Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?
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Chemistry, 22.06.2019 18:00
To apply in a gold the individual gold atoms are united to each other by means of a metallic bond. how would you use the gold block to determine the atomic radius of a gold atom?
Answers: 3
The number of protons, called the atomic number is shown , but the mass number is missing from the s...
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