If boron has two energy levels, then how many energy levels do the other two elements have?
Aluminum has three energy levels, and gallium has four energy levels.
Aluminum has four energy levels, and gallium has three energy levels.
Aluminum and gallium both have two energy levels.
Aluminum has one energy level, and gallium does not have any energy levels
I can help but you need to tell me what you don't understand about this problem. Note that H is in row 1 and has 1 energy level.
Then Li is in row two and has 2 energy levels.
Then Na is in row 3 and has 3 energy levels. Do you see a trend here? What rows are used for B, Al, Ga?
Boron has only two naturally occurring isotopes. The mass of boron-10 is 10.01294 amu and the mass of boron-11 is 11.00931 amu. Use the atomic mass of boron to calculate the relative abundance of boron-10. Atomic mass of boron is
Which of the following elements (C, B, Be, Li for both parts of the question) will have the greatest increase in ionization energy between the removal of the first and second electrons? Which has the largest atomic radius? a.
Naturally occuring boron is 80.20% boron-11 and 19.80% of some other isotopic form of boron. What must be the atomic mass of this second isotope be in order to account for the 10.81 amu average atomic mass for boron?
naturally occurring boron is 80.20% boron 11 (atomic mass= 11.01amu) and 19.80% of some other isoptopic form of boron. what must the atmoci mass be be in order to account for the 10.81 amu averafe atomic mass of boron? round to
When 0.500 moles of boron trichloride react with 1.20 moles hydrogen gas to produce elemental boron and hydrogen chloride gas, the actual yield of boron was 66.4 % of the theoretical yield. The mass of boron obtained was _____ g.
Boron is used to dope 1 kg of germanium (Ge). How much boron (B) is required to establish a charge carrier density of 3.091e7/cm^3. One mole of germanium has a volume of 13.57 cm^3 and weighs 72.61 gram. Give answer in grams of
Boron, germanium, aluminum, silicon and antimony are all semimetals right? or am i wrong on this? i don't think aluminum. Antimony, aresenic, boron, germanium, selenium, silicon, tellurium. double check though.
A silicon ingot, which should contain 10^16 boron atoms/cm3, is to be grown by the Czochralski technique. What concentration of boron atoms should be in the melt to give the required concentration in the ingot ? If the initial