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- Name: Chromium
- Symbol: Cr
- Atomic number: 24
- Atomic weight: 51.9961 (6)
- Standard state: solid at 298 K
- CAS Registry ID: 7440-47-3
- Group in Periodic Table: 6
- Group name: (none)
- Period in periodic table: 4
- Block in periodic table: d-block
- Colour: silvery metallic
- Classification: Metallic
Chromium is steel-gray, lustrous, hard, metallic, and takes a high polish. Its compounds are toxic. It is found as chromite ore. Siberian red lead (crocoite, PrCrO4) is a chromium ore prized as a red pigment for oil paints.
Emerald is a form of beryl (a beryllium aluminium silicate) which is green because of the inclusion of a little chromium into the beryl crytal lattice in place of some of the aluminium ions. Similarly, traces of chromium incorporated into the crystal lattice of corundum (crystalline aluminium oxide, Al2O3) as a replacement for some of the Al3+ ions results in another highly coloured gem stone, in this case the red ruby.
What else can I help you with?
In the periodic table which atom has a mass of 24?
Magnesium (Mg) is the nearest with a mass of 24.3050
What does Cr stand for on the periodic table?
Cr stands for chromium on the periodic table. Chromium is a transition metal with atomic number 24 and is commonly used in various industrial applications, including in stainless steel production and in the manufacturing of pigments and dyes.
The mass of a Cr is 52 amu its atomic number is 24 how many neutrons are in its nucleus?
52 amu is 52 Atomic Mass Units. That is 52 is the total of all the protons and neutrons in the nucleus of an atom . The Atomic No, of 24 is the total number of protons inthe nucleus, ( also the postion in the Periodic Table, and the total number of electrons ). So we have a total of 52 fro all the protons and neutrons, and a total of 24 for all the protons. The difference 52 -24 = 28 is the total number of neutrons present in the nucleus of the atom.
How many elements of the periodic table were discovered by the UC Berkeley Labs?
Six elements on the periodic table were discovered by researchers at the University of California, Berkeley. They are americium (95), berkelium (97), californium (98), einsteinium (99), fermium (100), and seaborgium (106).
Is chromium an element or a compound or a homogeneous mixture or a heterogeneous mixture?
no! its a pure ELEMENT.. Check out the periodic table
What row in the periodic table has chromium?
Chromium (symbol: Cr; atomic number: 24) is in the fourth period, or row, of the periodic table.
Where is the chromium?
Chromium is located in the group 6 and period 4 of the periodic table of Mendeleev; the atomic number is 24 .
In the periodic table which atom has a mass of 24?
Magnesium (Mg) is the nearest with a mass of 24.3050
What number is in the 21 times table and 24 times table?
The lowest number in the 21 times table and 24 times table is 21 x 24 21 24 --- 4 420 ----- 424
What the atomic mass and the mass number of Mg?
The atomic number of magnesium is 12 and the mass number is 24.305 use the Periodic Table it gives you all the info you need :D
Where does chromium lie on the periodic table?
The atomic number of chromium(Cr) is 24. It is in Group 6 and Period 4. It can be found like in the middle, more to the left.
What does Cr stand for on the periodic table?
Cr stands for chromium on the periodic table. Chromium is a transition metal with atomic number 24 and is commonly used in various industrial applications, including in stainless steel production and in the manufacturing of pigments and dyes.
What super heavy element starts with the letter R?
Name: RadiumSymbol: RaAtomic number: 88Atomic weight: [ 226 ]Standard state: solid at 298 KCAS Registry ID: 7440-14-4Group in periodic table: 2Group name: Alkaline earth metalPeriod in periodic table: 7Block in periodic table: s-blockColour: metallicClassification: MetallicName: RutherfordiumSymbol: RfAtomic number: 104Atomic weight: [ 267 ]Standard state: presumably a solid at 298 KCAS Registry ID: 53850-36-5Group in periodic table: 4Group name: (none)Period in periodic table: 7Block in periodic table: d-blockColour: unknown, but probably metallic and silvery white or grey in appearanceClassification: MetallicName: RoentgeniumSymbol: RgAtomic number: 111Atomic weight: [ 280 ]Standard state: presumably a solid at 298 KCAS Registry ID: 54386-24-2Group in periodic table: 11Group name: (none)Period in periodic table: 7Block in periodic table: d-blockColour: unknown, but probably metallic and silvery white or grey in appearanceClassification: Metallic
What does the number 24 represent in the bible?
24 represents the church
How many neutrons dose aluminum-24 have?
Looking at a periodic table, you see Al is number 13. It has 13 protons in the nucleus,so to have a total mass number of 24, it must have 11 nuetrons. Mass number = # protons + # nuetrons
How many nuetrons does the element sulfur have?
I don't have a periodic table, but round its atomic mass to a whole number and subtract the amount of protons which equal the atomic number. So if the atomic mass is 24 and the atomic number is 12, 24-12=12.- example
What elements on the periodic table are greater than 23?
Elements greater than 23 on the periodic table include vanadium (23), chromium (24), manganese (25), iron (26), cobalt (27), nickel (28), copper (29), zinc (30), and so on.
