Give the valance electron configuration for Niobium.

Q: Name two elements in the group which has the general electron configuration ns2np3.

A: Given: The general electron configuration of element is ns2np3. Here, n represents the principal…

Q: Cesium has 1 valence electron. How many possible bonds can be formed and why?

A: Given Cesium has 1 valence electron. Cesium is an alkali metal. Its atomic number is 55.

Q: What is the ground state valence shell electron configuration of a group 4A element

A: The s orbital of the group 4A element has 2 valence electron and the p orbital has 2 valence…

Q: Are metalloids electrical semiconductors? Explain with an example?

A: Are metalloids electrical semiconductors have to be explain with an example,

Q: What is lithium?

A: Pure substances that are made up entirely of atoms and have the same number of protons in their…

Q: which one of the fellowing elments will be paramagnetic? argon helium zinc sodium berylium

A: Paramagnetic is element in which electrons are not paired.

Q: Cesium tends to be the most reactive of the stable alkali metal. What atomic property of radioactive…

A: Cs is considered to be a radioactive metal. It is larger in size and its reactivity is very high. If…

Q: The electron configuration for vanadium (V) is O [Ar] 4s2 3d3 O [Ar] 4s2 3 O [Ar] 3d None of these

A: The distribution of electrons in an element's atomic orbitals is described by its electron…

Q: Give the complete electron configuration for the two gallium ions.  Do not use the noble gas…

A: The element given is Ga and the ions are Ga+ and Ga+3. The atomic number of element Ga is 31.

Q: concentration

A: The ion-exchange membrane is a semi-permeable membrane which transports certain dissolved ions,…

Q: Write balanced equations for the following reactions: barium oxide with water sulfur trioxide with…

A: A balanced chemical equation is an equation which contains same elements in same number on both the…

Q: Explain these concepts Ionization enthalpy Electron gain enthalpy

A: Ionization Enthalpy: It is the energy required to remove the most loosely bound electron from an…

Q: How does ionisation energy change going down group 2 and why?

A: Ionization Energy: The amount of energy required to remove the loosely held electrons from an…

Q: How many valence electrons does Oxygen, Sulfur, Selenium, Tellurium and Polonium have?

A: The term valence electrons refer to the electrons which are present in the outermost shell (also…

Q: What is a tetrahedral hole?

A:

Q: Use electron configuration and orbital diagram to account for the trend in electron affinity from…

A: Electron affinity is the amount of energy released when electron is added to an  isolated gaseous…

Q: 21. The halogen element that has the most attraction for the hydrogen electron is a. fluorine b.…

A: Introduction: The electronic attraction power of an element is called electronegativity. The higher…

Q: Magnesium has 2 electrons in its outer shell. Oxygen has six electrons in its outer shell. How does…

A:

Q: Which would be the most reactive non-metal? A) 15P B) 19K C) 52Te D) 53I E) they are all equally…

A: The most reactive nonmetals reside in the upper right portion of the periodic table. The element…

Q: Calculate the free electron per atom of metal A. The electrical conductivity of metal A is 6.0 × 10²…

A:

Q: What is difference between ionization energy and ionization potential. Give 2 examples of each.

A: Ionisation Energy:-It is the energy required to eject an electron from an atom. For eg for Na let…

Q: The following ions exhibit diamagnetism behavior, EXCEPT: Select one: a.Fe3+ b.Ga3+ c.O2– d.Cl–

A: Given,  The following ions exhibit diamagnetism behavior, EXCEPT: Select one: a.Fe3+ b.Ga3+…

Q: which element would be the most reactive: magnesium or strontium.

A: Reactivity order of Mg and Sr =?

Q: This elements produced bright yellow flame when used in fireworks. * Ве Ca O Sr Mg Group 2 elements…

A: Answer Q=1 which element produce bright yellow flame when used in…

Q: Write the electron configuration for the Br atom and the predicted Br ion.

A: ◆ Electronic Configuration is the distribution of electrons in the energy levels of the atom. The…

Q: The electron configuration of V (vanadium

A: Vanadium is element of first transtion series or can say vanadium belongs to d block elements, or…

Q: The high reactivity of Fluorine in groupVII (Group 17) K is due to 1. the weaker F-F bond 2. the…

A: The high reactivity of fluorine is due to the weakness of F-F bond, very high oxidizing power of…

Q: 7. Write equations for the formation of these compounds from the elements: a. Strontium Hydride b.…

A: Synthesis of the compound from elements means their synthesis in 1 mol amount . That means to form…

Q: What are the identidication tests used for the group III and IV elements? Give comprehensive…

A: Identification test for group III and group IV cations are needed to be discussed.

Q: What is the most likely type of bind present between atoms of germanium and arsenic

A: Silicon and germanium are pure semiconductors. The addition of impurity to the pure semiconductor to…

Q: Write the full electron configuration of vanadium, V. electron configuration: Write the full…

A:

Q: Why is boron less chemically reactive than beryllium

A: Electronic Configuration of boron(B)- 1s22s22p1     (2,3) Electronic Configuration of Beryllium(Be)-…

Q: Which of the following is the electronic configuration of the Chromium(III)? Cr3+ [Ar] 3d3 .a O Cr3+…

A: The Aufbau principle indicates the manner in which electrons are filled in the atomic orbitals of an…

Q: 11. Which of the following belongs to alkaline earth metals? O K] 4d5 5s1 O (Ar] 4s2 O [Ar] 3d10 4s2…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: describe the orbitals that make up n=3, describe the orbitals and their energy levels and how they…

A: n is the principal quantum number.  So, n = 3 corresponding to l (azimuthal quantum number) = 2, 1…

Q: The atomic radii of lanthanides decrease from Ce to Lu, except for Eu and Yb because less electrons…

A: Applying concept of metalic bonding in Eu and Yb.

Q: 3. Which of the following is NOT found in group 13? A boron (B) B gallium (Ga) © indium (In) D…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: What is the number of electrons for AsBr5?

A: Arsenic consists of 33 electrons and its electronic configuration is 2,8,18,5. So, its valence shell…

Q: Potassium and Sulfide ions are isoelectronic. Explain the term isoelectronic with reference to these…

A: Atomic number of potassium = 19  Atomic number of sulfur = 16

Q: Iron(II) fumerate (also called ferrous fumerate) is prescribed for patients suffering from iron-…

A:

Q: Explain why the first innization energy of Ca is greater than that of K, whereas the second…

A: The first ionization energy of Ca is greater than that of K, whereas the second ionization energy of…

Q: In the orbital diagram of Phosphorous number of unpaired (P), the electrons is Oa. 3 Ob. 5 Oc. 0 Od.…

A: The atomic number of phosphorus is 15 so it has 15 electron.

Q: Why does table salt, NaCl, some times appear yellow in colour?

A: All matter can exist in different physical states; solid, liquid and gases. Solid is well known…

Group 14 Elements

The following elements come under group 14 of the periodic table.