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If you had a sample of beryllium would all the atoms be indentical?
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What element in the periodic table has 4 neutrons?
Any element can have 4 neutrons but most of them aren't metallic. Anyway's on the periodic table it would be Be and that stands for Beryllium
What is the ratio of hydrogen to oxygen in this sample of four water molecules?
2:1 ratio. There would be eight atoms of hydrogen and four atoms of oxygen.
A sample of an element contains only one kind of?
An element is any substance that is made of one type of atoms. There are almost 110 elements found by the scientists so far. They are linked on the periodic table. Some examples of elements -: gold, mercury, oxygen, helium, iodine, zinc, nickel, copper, magnesium, hydrogen, potassium, calcium, sodium, beryllium, carbon, chromium, californium, chlorine and so on.
How many moles are present in a sample of 3.2x10 atoms of nickel?
A sample of 3,2x10 atoms of nickel is equal to 0,53.10e-23 moles.
What chemical does beryllium react well with?
Beryllium is a chemical compound with the symbol Be. The chemicals that beryllium does react well with would be acids and water to form a hydrogen gas.
How many unchanges atoms would remain after 3 half lives if the initial sample had 600 unchanged atoms?
Only 75 atoms
How many grams would a sample of 3.01 x 1023 atoms of tellurium be?
63.8g
What element in the periodic table has 4 neutrons?
Any element can have 4 neutrons but most of them aren't metallic. Anyway's on the periodic table it would be Be and that stands for Beryllium
What would be the charge of a beryllium atom that has a full outer shell?
Beryllium has 2 outer shell electrons. Its full electronic configuration is:- 1s2, 2s2
What is the ratio of hydrogen to oxygen in this sample of four water molecules?
2:1 ratio. There would be eight atoms of hydrogen and four atoms of oxygen.
If you knew how many atoms of gold you had how could you figure out what the sample would weigh on a scale?
Yes. One mole (6.02 x 10 to the 23 atoms) would weigh 197 grams.
A sample of an element contains only one kind of?
An element is any substance that is made of one type of atoms. There are almost 110 elements found by the scientists so far. They are linked on the periodic table. Some examples of elements -: gold, mercury, oxygen, helium, iodine, zinc, nickel, copper, magnesium, hydrogen, potassium, calcium, sodium, beryllium, carbon, chromium, californium, chlorine and so on.
Why do halides of Be polymerise?
Beryllium is covalent and polymeric. Each beryllium atom is bonded to four hydrogen atoms and each hydrogen atoms forms two bonds as it is bridiging two Be atoms. Since Be has two valence electrons and H only one, it is apparent that there are not enough electrons to form the usual electron pair bonds in which two electrons are shared between two atoms. Instead of this , three-center bonds are formed in which a 'banana-shaped' molecular orbital covers three atoms BE...H...Be, anc contains two electrons.The monomeric molecule BeH2, if formed with normal bonds, would have only four electrons in the outer shell of the beryllium atom and would be electron deficient. This would make the molecule very unstable; that is why BeH2 exists as polymer.
How many moles are present in a sample of 3.2x10 atoms of nickel?
A sample of 3,2x10 atoms of nickel is equal to 0,53.10e-23 moles.
How many moles of fluorine atoms are in a sample of fluorine that contains 7.45 x 1024 fluorine atoms?
Whatever be the substance the one gram mole of that substance would have 6.023 x 1023 atoms or molecules or ions in it. Hence to get the mole just divide the number given by 6.023 x 1023
How many grams of silicon would there be in a sample that contained 9.99 x 1025 atoms?
The mass of silicon is 4 659 g.
How many C-13 atoms are present on average in a 13000-atom sample of carbon?
Carbon-13 make up 1.1% of carbon atoms. .011 x 19000 carbon atoms = 209 carbon-13 atoms present.
