Answer:-
D). 7, 1 and 2
because halogen have general electronic configuration n2np5 and alkali metal ns1 , alkaline earth metal ns2
valence electrons, [15] The halogens, alkali metals, and alkaline earth metals have respectively, A) 7,4, and...
in their compounds, the charges on the alkali metals and the
alkaline earth metals are _ and _ respectively
E) O2 . In their compounds, the charges on the alkali metals and the alkaline earth metals are respectively. and
lodine is a member of which family? noble gases alkaline earth metals alkali metals none of these halogens Previous
have the lowest first ionization energies of the groups listed. Halogens Alkaline earth metals Transition elements Alkali metals How many bonding electrons are in the Lewis structure of carbon monoxide, CO? 3 02 Consider the following electronegativity values: H = 2.1, CI = 3.0, F = 4.0 Which molecule below would you expect to have the more polar bond? HF HCI F2 CIZ Which compound below is a nonpolar molecule AND has a linear molecular geometry? ОСНА BeCl2 ОН20 SCI2
11. The electron configuration of phosphide ion (13-) is -- a) (Ne]3s 3p b) (Ne]3:43 d) [Ne3 e) (Ne]3s 3p c) Ne]3s 2. Which of the following atoms would be expected to have the largest electron affinity, or wou release the greatest amount of energy when an electron is added? 1) Na - 6 F c o d) Li d) LIB The halogens, alkali metals, and alkaline earth metals have ---------valence electrons, respectively a) 7. I. and 2 b) 8.2...
9. Differentiate between the following terms with examples. a. Alkali metals and alkaline earth metals b. Ionization and ionization energy c. Electronegativity and electron affinity
complete the sentences regarding alkaline earth
metals
The Group 2A(2) elements are called alkaline earth metals because their oxides give (alkaline) solutions and melt at such temperatures that they remained as solids ("earths") in the alchemists fires. denser low for 2A metals than larger lower The melting and boiling points are much for the corresponding 1A metals. ences smaller oxidizing Compared to corresponding Group 1A(1) elements, Group 2A(2) elements have metallic bonding and atomic sizes which makes them harder and...
9. Which elements have a partially filled p sublevel in their electron configuration? or files A) alkali metals B) alkaline earth metals C) halogens D) noble gases E) transition metals 1st 3 CHEM 1 10. Which element has the abbreviated electron configuration [Ne]3s23pl? Α) ΑΙ B) P C ) Si DCI E) Ar 11. What is the abbreviated electron configuration for Fe? A) [Ar]4s9 B) [Ar]3d C) [Ar]45236 D) [Ar]4:24p6401 E) [Ar]4,2347
45. a) Chalcogens b) Alkali metals c) Alkaline carth metals d) Halogens c) Noble gases 46. When the cquation: AINOh+NaS a) 2,3,1,6 b) 2,1,3,2 c) 4,6,3,2 d) 2,3,2,3 47 reaction a) NH4CI NH3 + HCI b) 2Mg+02 2Mgo c) 2N2+3H2 2NH3 d) 2CH4 + 402-2C02+4H20 48. Which of the following are combustion reactions? CH4 (g) + O2 (g) → CO2 (g) + H 201) b) a) CaO (s)+ CO2 (g)-CaCO3 (s) c) A. 1 and 4 B. 1,2,3 and4 C....
Why do Group 2 alkaline earth metals have a large positive electron affinity, while Group 1 alkali metals have a negative electron affinity? Use their electron configurations and box diagrams to support your answer.
complete the sentences regarding alkaline earth
metals
nceptuel Help Save& Exit Submit Cheek my work The Group 2A(2) elements are called alkaline earth metals because their oxides give basic (alkaline) solutions and melt at such high temperatures that they remand as solds(.earths") ?n the alchemists' fires. smallerhalf The melting and boiling points are much higher for 2A metals than for the corresponding 1A metals. oxidizing reducing basic lower Compared to corresponding Group 1A(1) elements, Group 2A[2) elements have metalic bonding...