(a)
Interpretation:
The unknown elements X in
Concept introduction:
Metals: According to chemistry, an element of metal easily donates electrons to form cations (positive ion) and forms metallic bonds.
Non-metal: According to chemistry, an element of non-metal easily accepts electrons to form anions (negative ion) and forms non-metallic bonds.
(b)
Interpretation:
The unknown elements X in
Concept introduction:
Metals: According to chemistry, an element of metal easily donates electrons to form cations (positive ion) and forms metallic bonds.
Non-metal: According to chemistry, an element of non-metal easily accepts electrons to form anions (negative ion) and forms non-metallic bonds.
(c)
Interpretation:
The chemical formula of product compound when X reacts with Y has to be identified.
(d)
Interpretation:
The group in which elements X and Y are present has to be identified.
Want to see the full answer?
Check out a sample textbook solutionChapter 3 Solutions
General Chemistry: Atoms First
- How many inner, outer, and valence electrons are present in an atom of each of the following elements?(a) O(b) Sn(c) Ca(d) Fe(e) Searrow_forward(1) What is the valence electron configuration for the krypton atom? (2) What is the valence electron configuration for the silicon atom? (1) What is the name of the element with a valence electron configuration of 2s2p4? (2) What is the name of the element with a valence electron configuration of 4s24p°? (1) The element with a valence electron configuration of 2s22p4 is in group and period (2) The element with a valence electron configuration of 3s23p² is in group and period please explain eacharrow_forwardBy gaining 2 electrons, a sulfur atom attains an electron arrangement like that of the noble gas argon. (a) Explain why the sulfur atom does not become an argon atom. (b) State what the sulfur atom does become when it gains 2 electrons.arrow_forward
- Arrange in order of increasing atomic size. (a) the period 3 elements Cl, Na, and Ar (b) the Group 2A elements Ca, Be, and Mgarrow_forward2) i) options: dehydrating agent steel production sewage treatment oxidizer for rocket fuels ii) options: fractional distillation of liquid air photosynthesis electrolysis of water decomposition of hydrogen peroxidearrow_forwardUsing condensed electron configurations, write equations representing the formation of the ion(s) of the following elements: (a) Ba (Z = 56) (b) O (Z = 8) (c) Pb (Z = 82)arrow_forward
- 2. The ionization energy of an element is defined as the amount of energy required to remove an electron from an individual atom. The following table gives the ionization energy (in units of kilojoules per mole) for five metals, listed in alphabetical order. Locate each of these metals on the periodic table and arrange them in order of rows and columns as in the periodic table. (a) Describe the periodic trend in the ionization energy of elements within a group. (b) Describe the periodic trend in the ionization energy of elements across a period. Metal Calcium Magnesium Potassium Sodium Strontium Ionization Energy 590 738 419 496 549 Materialsarrow_forwardIn the table below, I1 – I6 represent first 6 ionization energies of a certain element. All units are kJ/mol. I1 I2 I3 I4 I5 I6 738 1450 7730 10500 13600 18000 This element is in the 3rd row of the periodic table, the row starting with Na. Identify the element, and explain your reasoning, based on the data in the above table.arrow_forwardDraw the electron dot formula for each of the following elements: (a) Si (b)Xearrow_forward
- In complete sentences, explain: (a) why Se2 - and Br - are about the same size; (b) why Br - is slightly smaller than Se2 -; and (c) which singly charged cation you would expect to be approximately the same size as Se2 - and Br - and why.arrow_forwardWrite an electron-dot symbol for each element: (a) sodium; (b) phosphorus.arrow_forwardGive correct detailed Solution with explanation needed. ..don't give Handwritten answerarrow_forward