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2013cheer 2013cheer
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Asked Jan 3rd, 2013 / Closed
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Need Help on Chemistry homework! Test Tomorrow!!! Please makre sure answers are correct!

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1- in the periodic table, there is a periodic pattern in the physical and chemical properties of elements when they are arranged in order of____(d)

a- increasing atomic mass

b- increasing elecrtonegativity

c- increasing atomic radius

d- increasing atomic number

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2-which sublevel corresponds to the transition metals in the periodic table? (c)

a- s

b- p

c-d

d-f

 

3- which of the following elements is a metalloid? (a)

a- as

b- s

c- br

d- kr

 

4- the element iodine, i, is a___(a)

a- period 4 alkali metal

b- period 4 halogen

c- period 5 halogen

d- period 5 transition metal

 

5- the subatomic particle that plays the greatest role in determining the physical and chemical properties of an element is the____(c)

a-protons

b-neutron

c- electron

d- photon

 

6- which of the following atoms would you expect to have the largest atomic radius? (d)

a- i

b- k

c- ca

d- rb

 

7- from left to right across the second period of the periodic table (a)

a- ionization energy increasing

b- atomic radius increase

c- electronegativity decreasing

d- atomic mass decreases

8- electronegativity (c)

a- generally decreases from left to right across a period

b- is the energy change that accompanies the loss of an electron from gaseous atom

c-  generally decreases from top to bottom within a group

d- is generally higher from metals than for nonmetals

 

9- atomic size generally___(d)

a- increases from left to right across a period

b- decreases from top to bottom within a group

c- remains constant within a period

d- decreases from left to right across a period

 

10-  of the following atoms, which one has the smallest ionization energy? (b)

a- boron

b- aluminum

c- nitrogen

d- silicon

11- arrange the following elements in order of decreasing ionization energy

a- cs, li, k  ( li, k, cs )

b- ci, si, p, ar  ( ar, ci, p, si )

c- ca, ba, be, sr  ( be, ca, sr, ba )

12- arrange the following elements in order of increasing atomic size

a- o, s, sc  ( o, s, sc )

b- rb, li, k  ( li, k, rb )

c- ba, cs, au ( au, ba, cs)

13- tell whether each of the following elements is a transition metal, a nobel gas, an alkali metal (group 1), an alkali earth metal (group 2), or a halogen.

a- calcium ( alkaline earth(group 2) )

b- cesium ( alkaline metals (group 1) )

c- fluorine ( halogen )

d- chromium ( transition metal )

e- neon ( noble gas)

f- silver ( transition metal )

14- which element in each pain has the higher electronegativity value?

a- na  or mg  (mg)

b- rb or  i  (i)

c- ci  or br  (br)

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