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oue element and does not truly belong to a A) Nitrogen B) Radium Hydrogen D) Uranium...
Hydrogen - Atomic number Helium - He He 4.00 First Mass number Element symbol shell Electron-...
Hydrogen - Atomic number Helium - He He 4.00 First Mass number Element symbol shell Electron- distribution diagram Lithium Beryllium Be Boron Carbon Fluorine 6C Nitrogen N Neon 10 Ne Second shell Silicon Sodium 11 Na Aluminum Phosphorus Magnesium 12 Mg Chlorine 17C1 Argon 18Ar 14Si 1SP Third shell According to the section of the Periodic Table of Elements above, which element is most likely to have similar chemical properties to carbon? A. Nitrogen OB. Silicon C. Phosphorus D. Boron
Hydrogen 1H 2- Atomic number He Helium - He Mass number First shell Element symbol- Electron-...
Hydrogen 1H 2- Atomic number He Helium - He Mass number First shell Element symbol- Electron- distribution diagram Lithium Beryllium Carbon Boron 3B Oxygen Nitrogen en N Fluorine انار Neon Be 10 Ne Second shell Sodium 11 Na Aluminum AI Sulfur Magnesium 12Mg Chlorine Phosphorus Silicon 1 Si Argon Ar Third shell According to the section of the Periodic Table of Elements above, which element is most likely to have similar chemical properties to carbon Selected Answer: C. Phosphorus Answers:...
(10.8. To which crystal system does each of the following space groups belong? (a) P4,22 (b)...
(10.8. To which crystal system does each of the following space groups belong? (a) P4,22 (b) P2./n (c) P73m (d) Fmm2 (e) P3 (f) Immm (g) Amam
An element has the following electronic configuration: [Kr]4d15s2 (a) What period does it belong to? (b)...
An element has the following electronic configuration:
[Kr]4d15s2
(a) What period does it belong to?
(b) What is its group number? (Use group numbers from 1 to
18)
(c) What kind of element is it? (Main group metal, transition
metal, metalloid, nonmetal?)
(d) How many unpaired electrons are there in an atom of this
element?
(e) What element has this electronic configuration? (attached
figure)
Thank you!!! :)
4p AS 3d
I. Carbon atoms are about 25% lighter than oxygen atoms (the ratio of their weights is...
I. Carbon atoms are about 25% lighter than oxygen atoms (the ratio of their weights is 3 to 4). What is the weight ratio of the carbon and oxygen that go into the formation of carbon monoxide, CO? (a) 4 parts carbon to 3 parts oxygen (b) 1 part carbon to 4 parts oxygen (c) 1 part carbon to 1 part oxygen (d) 4 parts carbon to 1 part oxygen (e) 3 parts carbon to 4 parts oxygen 2. How...
3. Write Lewis structures for the following. What molecular shape does each have? Circle the structures...
3. Write Lewis structures for the following. What molecular shape does each have? Circle the structures you believe to be polar. What is they hybridization around the central atoms? a. HNNH b. PCI c. Sicu d. So, e. CH2Br2 4. Describe how the movement of electrons about a hydrogen atom gives us a line sprectrum. (Bohr model) comic radius 5. List the possible orbitals available in the 3 energy level. 6. Arrange the following types of waves from shortest wavelength...
need help with all ... 10. Calculate the wavelength of the spectral line in the comission...
need help with all ...
10. Calculate the wavelength of the spectral line in the comission spectrum of hydrogen for which land 3. 277 mm b. 103 mm c. 345 mm d. 397 mm 11. For the wavelength emitted by hydrogen above question 10). what region of the electromagnetic spectrum does this photos belong to? Infrared b. Visible c. Ultraviolet d. X-Ray Radio waves 12. Magnesium forma m a mic ion which has the clectronic configuration of a moble as...
please explain all 18. Which choice contains a set of isoelectronic species? A. O?-and Nat B....
please explain all
18. Which choice contains a set of isoelectronic species? A. O?-and Nat B. 02- and S? C. 02- and F2 D. 02- and P3-only 19. What element is represented by the electron configuration 1s22s22p“3s 3p3? Α. Ρ '.' B. S C. Si D. As 20. How many single bonds, double bonds and lone pairs are predicted on the nitrogen atom for ONCI (Nitrogen is the central element, so the skeleton can be visualized in the order O-N-CI)?...
Which element docs the orbital diagram represent: A. Fluorine B. Sodium C. Nitrogen D. Magnesium Which...
Which element docs the orbital diagram represent: A. Fluorine B. Sodium C. Nitrogen D. Magnesium Which is the correct condensed electron configuration for the Al^3+ ion? A. [Ne] B. [Ne]3s^1 3p^1 C. [Ne]2s^23p^1 D. [Ar]3s^13p^1 Why does atomic radius generally decrease across a period (from left to right)? A. Z_eff is greater so outer electrons are drawn tighter B. Z_eff is smaller so outer electrons arc drawn tighter C. Z_eff is greater so inner electrons are drawn tighter D. Z_eff...
18) From the following elements, one is not naturally diatomic molecule b- Nitrogen a-Oxygen d- Copper c- lodine 19...
18) From the following elements, one is not naturally diatomic molecule b- Nitrogen a-Oxygen d- Copper c- lodine 19) In the element Radium Ra, the number of protons, neutrons and electrons are respectively b-88, 88, 226 a- 88, 138, 88 d- 138, 88, 88 c-88, 226, 88 20) The empirical formulas of glucose CaHi:O, is b- CHO a- CiaHaO12 d-CH O c-CH:0 21) The compound NHa is a: b-A polyatomic cation a- A monoatomic cation d-A polyatomic anion c- A...
Hydrogen - Atomic number Helium - He He 4.00 First Mass number Element symbol shell Electron- distribution diagram Lithium Beryllium Be Boron Carbon Fluorine 6C Nitrogen N Neon 10 Ne Second shell Silicon Sodium 11 Na Aluminum Phosphorus Magnesium 12 Mg Chlorine 17C1 Argon 18Ar 14Si 1SP Third shell According to the section of the Periodic Table of Elements above, which element is most likely to have similar chemical properties to carbon? A. Nitrogen OB. Silicon C. Phosphorus D. Boron
Hydrogen 1H 2- Atomic number He Helium - He Mass number First shell Element symbol- Electron- distribution diagram Lithium Beryllium Carbon Boron 3B Oxygen Nitrogen en N Fluorine انار Neon Be 10 Ne Second shell Sodium 11 Na Aluminum AI Sulfur Magnesium 12Mg Chlorine Phosphorus Silicon 1 Si Argon Ar Third shell According to the section of the Periodic Table of Elements above, which element is most likely to have similar chemical properties to carbon Selected Answer: C. Phosphorus Answers:...
(10.8. To which crystal system does each of the following space groups belong? (a) P4,22 (b) P2./n (c) P73m (d) Fmm2 (e) P3 (f) Immm (g) Amam
An element has the following electronic configuration:
[Kr]4d15s2
(a) What period does it belong to?
(b) What is its group number? (Use group numbers from 1 to
18)
(c) What kind of element is it? (Main group metal, transition
metal, metalloid, nonmetal?)
(d) How many unpaired electrons are there in an atom of this
element?
(e) What element has this electronic configuration? (attached
figure)
Thank you!!! :)
4p AS 3d
I. Carbon atoms are about 25% lighter than oxygen atoms (the ratio of their weights is 3 to 4). What is the weight ratio of the carbon and oxygen that go into the formation of carbon monoxide, CO? (a) 4 parts carbon to 3 parts oxygen (b) 1 part carbon to 4 parts oxygen (c) 1 part carbon to 1 part oxygen (d) 4 parts carbon to 1 part oxygen (e) 3 parts carbon to 4 parts oxygen 2. How...
3. Write Lewis structures for the following. What molecular shape does each have? Circle the structures you believe to be polar. What is they hybridization around the central atoms? a. HNNH b. PCI c. Sicu d. So, e. CH2Br2 4. Describe how the movement of electrons about a hydrogen atom gives us a line sprectrum. (Bohr model) comic radius 5. List the possible orbitals available in the 3 energy level. 6. Arrange the following types of waves from shortest wavelength...
need help with all ...
10. Calculate the wavelength of the spectral line in the comission spectrum of hydrogen for which land 3. 277 mm b. 103 mm c. 345 mm d. 397 mm 11. For the wavelength emitted by hydrogen above question 10). what region of the electromagnetic spectrum does this photos belong to? Infrared b. Visible c. Ultraviolet d. X-Ray Radio waves 12. Magnesium forma m a mic ion which has the clectronic configuration of a moble as...
please explain all
18. Which choice contains a set of isoelectronic species? A. O?-and Nat B. 02- and S? C. 02- and F2 D. 02- and P3-only 19. What element is represented by the electron configuration 1s22s22p“3s 3p3? Α. Ρ '.' B. S C. Si D. As 20. How many single bonds, double bonds and lone pairs are predicted on the nitrogen atom for ONCI (Nitrogen is the central element, so the skeleton can be visualized in the order O-N-CI)?...
Which element docs the orbital diagram represent: A. Fluorine B. Sodium C. Nitrogen D. Magnesium Which is the correct condensed electron configuration for the Al^3+ ion? A. [Ne] B. [Ne]3s^1 3p^1 C. [Ne]2s^23p^1 D. [Ar]3s^13p^1 Why does atomic radius generally decrease across a period (from left to right)? A. Z_eff is greater so outer electrons are drawn tighter B. Z_eff is smaller so outer electrons arc drawn tighter C. Z_eff is greater so inner electrons are drawn tighter D. Z_eff...
18) From the following elements, one is not naturally diatomic molecule b- Nitrogen a-Oxygen d- Copper c- lodine 19) In the element Radium Ra, the number of protons, neutrons and electrons are respectively b-88, 88, 226 a- 88, 138, 88 d- 138, 88, 88 c-88, 226, 88 20) The empirical formulas of glucose CaHi:O, is b- CHO a- CiaHaO12 d-CH O c-CH:0 21) The compound NHa is a: b-A polyatomic cation a- A monoatomic cation d-A polyatomic anion c- A...
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