Explain what is the atomic number of the element of group 16

Assignment Help Chemistry
Reference no: EM13557734

Columns in the periodic table are called groups, and the rows are called periods. Notice that the groups are labeled 1 to 18 and the periods are labeled 1 to 7. Groups 1, 2, and 13 to 18 are called the main group elements, groups 3 to 12 are the transition elements, and the bottom two rows are called the lanthanides and actinides, respectively.

This table gives properties and alternate names for some of the groups:

Group Name Properties
1 Alkali metals React to form 1+ ions.
2 Alkaline earths React to form 2+ ions.
17 Halogens React to form 1 ions.
18 Rare gases(noble gases) Stable and unreactive. (Elements from other
groups form ions to achieve the same number
of electrons as a noble gas.)

i) What is the atomic number of the element located in group 16, period 2 of the periodic table? Enter the atomic number.

ii) If a new element were discovered and it was found to form 1 ions, in which group would you place it in the periodic table? Enter the group number.

 

Reference no: EM13557734

Questions Cloud

Compute the rate constant at 17 oc : A first order reaction has an activation energy of 72.4 kJ/mol and a frequency factor (Arrhenius constant) of 1.78 x 1013 sec -1. Calculate the rate constant at 17 oC.
Find the velocity of the boat with respect to the ground : A boat is traveling upstream at 14 km/h with respect to thewater of a river. The water itself is flowing at 9 km/h withrespect to the ground. What is the velocity of the boat with respect to the ground
Evaluate the molarity and the molality of reagent grade : Calculate the molarity and the molality of reagent grade nitric acid. The specific gravity of this solution is 1.40 and its weight percent of solution is 70.0%
Determine through what distance does the point move : A rotating fan completes 1200 revolutions every minute.Consider a point at the tip of the blade. at a radius of0.15m. Through what distance does the point move in onerevolution
Explain what is the atomic number of the element of group 16 : What is the atomic number of the element located in group 16, period 2 of the periodic table. Enter the atomic number.
How managers can use content and process motivation theories : Explain how managers can use content and process motivation theories to enhance productivity and human resource maintenance in the presented scenario - Explain how managers can use empowerment as a strategy to engage and motivate employees.
Find the entropy change of the universe for this process : A 48 g piece of ice at 0.0 degree C is placed in an insulated calorimeter of negligible heat capacity containing 100 g of water at 100 degree C. What is the final temperature of the water once thermal equilibrium is established? Find the entropy chan..
Find the horizontal and vertical forces exerted on the beam : 20.0 kg floodlight in a park is supported at the end of ahorizontal beam of negligible mass that is hinged to a pole. find the horizontal and vertical forces exerted on the beam by the pole
Evaluate the work done in isotherfmal expansion : Derive an expression for work done in reversible isothermal expansion of a gas obeying van der waals equation. calculate the work done in isotherfmal expansion of 1.0 mol of CO2 from an initial volume of 1 L to a final volume of 5.0 L assuming it ..

Reviews

Write a Review

Chemistry Questions & Answers

  Explain sbcl6- with h2c2o4 and thioacetamide

In the qualitative analysis of antimony, please assist with net ionic equations for Sb3+ with thioacetamide, Sb2S3 with NaOH, Sb2S3 with conc. HCL, and SBCl6- with H2C2O4 and thioacetamide.

  How solution of aqueous trimethylamine is titrated

Calculate the pH of the solution after a)10.0mL b)20.0mL c)30.0 mL of acid have been added; pkb of (CH3)3N=4.19 at 25 degree celcius.

  How many grams of magnesium metal were used

An evaluation of R was performed, following the procedure described in this module. The barometric pressure was 736 torr, the temperature was 295 K, and the volume of hydrogen gas collected was 35.6 mL. The calculated value of R was 82.1mL atm K-1..

  Explain no graphite or hydrogen gas had been formed

A sample of gaseous C2H2 (acetylene, or ethyne) was stored for one year, yet at the end of this period the sample remained unchanged and no graphite or hydrogen gas had been formed. Briefly explain why there is no inconsistency between the sign of..

  State produce the same amount of energy as the fission

Fission of one mole of U-235 releases 1.9 x 1010 kJ. Calculate the number of kg of coal needed to produce the same amount of energy as the fission of 1 kg of U-235 (235.05g/mol)

  Define solutions in order of decreasing freezing point

Arrange the following solutions in order of decreasing freezing point: 0.10m Na3PO4; 0.35m NaCl; 0.20m MgCl2; 0.15m C6H12O6; 0.15m CH3COOH

  Evaluate the standard cell potential for mg(s)

Calculate the standard cell potential for Mg(s) + Fe2+(aq)--->Mg2+ + Fe(s) Express the standard potential numerically in volts.

  State balanced reduction half reaction

balanced oxidation half reaction and balanced reduction half reaction?

  Calculate the mass loss on heating

calculate the mass loss on heating 1.200 g of a NaHCO3-NaCl mixture containing 65% NaCl

  Explain reaction will occur when aqueous solutions

how to predict whether a precipitate reaction will occur when aqueous solutions of PbCl2 and (NH4)2S are mixed.

  Explain what will the kinetic equation for the data

What is the [t-BuCl], in M, when bromophenol blue changes color. Given this data, what will the kinetic equation (x-kt) be for this data. If 787 sec were required for the bromophenol blue color to change, then calculate

  Calcium hydride cah2 reacts with water to form hydrogen gas

calcium hydride cah2 reacts with water to form hydrogen gas.cah2s 2 h2ol caoh2aq 2 h2gthis reaction is sometimes used

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd