1. Element possesses +48 nuclear charge
2. Is an alkaline earth metal found in period 6
3. Lightweight metal with molar mass of 26.98 g/mol
4. Transition metal with atomic number of 39
5. First member of rare earth metals
6. Has ionization energy of 1577 kJ/mol
7. Is a period 4 nonmetal known since 1650
8. is a member of group 16 known since time of Roman empire
9. is a halogen whose crystals sublime
10. Has an atomic radius of 0.099 nm
11. Forms a diatomic gas witha a molar mass of 160 amu
12. Has a molar mass of 127.6 g/mol
13. Is a group 8 metal known during the time of the Roman Empire
14. Is element named after German word for Satan
15. has average atomic mass of 59 amu
16. Has nuclear charge of +44
17. has 114 neutrons within its nucleaus
Im sorry, I know this is asking a lot, but this is just 17 of nearly 100 that I have done. It is taking me so long, and I would be very gratefull for any help with these last few that I cannot find.
2006-12-05 08:51:42 · 5 answers · asked by Michael F 1 in Science & Mathematics ➔ Chemistry
This might take a while. I don't keep all of this in my head.
1. Element possesses +48 nuclear charge -- Cadmium
2. Is an alkaline earth metal found in period 6 -- Barium
3. Lightweight metal with molar mass of 26.98 g/mol -- Aluminum
4. Transition metal with atomic number of 39 -- Yttrium
5. First member of rare earth metals -- Scandium
6. Has ionization energy of 1577 kJ/mol -- Silicon (2nd e = 1577.1 kJ/mol)
7. Is a period 4 nonmetal known since 1650 -- Arsenic
8. is a member of group 16 known since time of Roman empire -- Sulfur
9. is a halogen whose crystals sublime - Iodine
10. Has an atomic radius of 0.099 nm -- Chlorine
11. Forms a diatomic gas with a molar mass of 160 amu -- Bromine
12. Has a molar mass of 127.6 g/mol -- Tellurium
13. Is a group 8 metal known during the time of the Roman Empire -- Iron
14. Is element named after German word for Satan -- (Teufel means “devil” in German) -- Phosphorus is "Light Bearing" in Greek (Lucifer is the Latin).
15. has average atomic mass of 59 amu -- Cobalt (58.93)
16. Has nuclear charge of +44 -- Ruthenium
17. has 114 neutrons within its nucleus -- Osmium
2006-12-05 09:01:37 · answer #1 · answered by Richard 7 · 66⤊ 4⤋
Period 4 Nonmetal Known Since 1650
2017-01-09 09:11:34 · answer #2 · answered by clemens 4 · 0⤊ 0⤋
The periodic Table is your friend...
2006-12-05 11:14:14 · answer #3 · answered by twinkiller14 1 · 0⤊ 0⤋
weee, i have the same thing too. :D is M chlorine? i looked it up and i couldn't find it or any information to back up the fact that its chlorine but, its in group 17... so idk.... adn i got chlorine off of wiki answers but anyone could've just made that up so idk. and P i think its either cesium, fluorine, or francium. i got different answers in different places i looked. in another yahoo answers question, they asked that and the best answer selected was francium [picked over fluorine and cesuim] butttt when i looked at the other answers and stuff it said that cesium is the most reactive in oxidation reactions and fluorine is the most reactive in reduction reactions. a couple of people said all three... soooo idk. but then again, yahoo answers isn't that reliable. andddd thennnnnn on another yahoo answers question [i researched it but i can't find any of this stuff online, just ppl who asked it on yahoo.] says that iron, aluminum, and zinc are non radioactive solids. you can check those out for O. srry i wasn't much help. =/
2016-05-22 22:05:02 · answer #4 · answered by ? 4 · 0⤊ 0⤋
The periodic Table is your friend...
2006-12-05 09:04:21 · answer #5 · answered by SS4 7 · 1⤊ 0⤋