When we describe properties of substances, we can divide them into chemical properties and physical properties. Chemical properties are how the substance react with other substances, while physical properties are mostly observable or measurable, which does not require the substance into reacting with other substances.
Since group I are all metals, the physical properties include shiny, malleable, ductile, good conductors of heat and electricity, have high melting points etc.
Chemical properties include react vigorously with water to form metal hydroxide and hydrogen, or react with oxygen to form metal oxide.
All they do is simply expand when you inhale and contract when you exhale.
Answer:
195.30358489599996
Explanation:
https://www.convertunits.com/from/moles+Fluorine/to/grams
This is the mole calculator I use, I hope its helpful!
Answer:
A number of other chemists before Mendeleev were investigating patterns in the properties of the elements that were known at the time. The earliest attempt to classify the elements was in 1789, when Antoine Lavoisier grouped the elements based on their properties into gases, non-metals, metals and earths. Several other attempts were made to group elements together over the coming decades. In 1829, Johann Döbereiner recognised triads of elements with chemically similar properties, such as lithium, sodium and potassium, and showed that the properties of the middle element could be predicted from the properties of the other two.
It was not until a more accurate list of the atomic mass of the elements became available at a conference in Karlsruhe, Germany in 1860 that real progress was made towards the discovery of the modern periodic table. This area of the website celebrates the work of many famous scientists whose quest to learn more about the world we live in and the atoms that make up the things around us led to the periodic table as we know it today.
Explanation:
PLZ MARK BRAINLIEST