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Monday, 3 August 2009

PERIODIC TABLE QUIZ X Part II

1. Most of the groups in the Periodic Table of the Elements contain ….
a. nonmetals
b. metals
c. nonmetals and metals
d. metals and metalloids
e. nonmetals and metalloids
2. The representative group of elements which is an alkaline is ….
a. group 0
b. group 2A
c. helium, neon, argon
d. natrium, kalium. rubidium
e. beryllium, magnesium, calcium
3. Atoms are most stable when their outer shells are filled. This causes the Noble gases to be ….
a. reactive
b. weak
c. strong
d. quite reactive
e. unreactive
4. Alkaline earth elements have two electrons valence, these elemens are ….
a. very big
b. quite reactive
c. unreactive
d. very reactive
e. very small
5. Which of the following atoms has the largest diameter?
a. H
b. Li
c. Na
d. K
e. Rb
6. Which of the following ions has the smallest radius?
a. F–
b. K+
c. Cl–
d. Ca2+
e. S2--
7. Compared to the radius of a chlorine atom, the radius of a chloride ion is ….
a. larger because chlorine loses an electron
b. larger because chlorine gains an electron
c. smaller because chlorine loses an electron
d. smaller because chlorine gains an electron
8. Periodicity is the property of having periodic properties. The periodic table shows periodicity in the following properties. The correct statement is ….
a. atoms of elements tend to increase in size across a period
b. atomic size of elements tend to decrease if we go down a group
c. ionization energy increases as we go down a group
d. ionization energy tends to decrease as we move across a period
e. ionization energy is the energy required to lose an electron from the gaseous state of the atom
9. Compared to an atom of potassium, an atom of calcium has a ….
a. larger radius and lower reactivity
b. larger radius and higher reactivity
c. smaller radius and lower reactivity
d. smaller radius and higher reactivity
10. The greater the number of protons in the nucleus, so ….
a. the stronger the electrons are held
b. the greater the negative charge
c. the smaller the positive charge
d. the stronger the protons are held
e. the stronger the positive charge is held
11. Periodicity is the property of having periodic properties. The periodic table shows periodicity in the following properties; the correct statement is ….
a. atomic size of elements tend to decrease if we go down a group
b. atoms of elements tend to increase in size across a period
c. ionization energy is the energy required to lose an electron from the gaseous state of the atom
d. ionization energy increases as we go down a group
e. ionization energy tends to decrease as we move across a period
12. The correct statement about energy ionization is ….
a. Ba(g)+ I1 --> Ba+ (g) + e
b. Ba+(g)+ I2 --> Ba2+ (g)
c. I1 is not always different with I2
d. each group has similar ionization energy
e. ionization energy of each period can’t be predicted
13. What are two properties of most nonmetals?
a. high ionization energy and poor electrical conductivity
b. high ionization energy and good electrical conductivity
c. low ionization energy and poor electrical conductivity
d. low ionization energy and good electrical conductivity
14. The secondary ionization energy is bigger than the first, because ….
a. atomic radius is small
b. nuclear charge is positive
c. atom absorps energy from environment
d. effective nuclear charge stronger than the first
e. both radius are same, number of electrons are different
15. The correct equation which is shown the electron affinity is ….
a. Br(g) --> Br- (g) + E
b. Br(g) + e --> Br- (g) + E
c. Br(g) + E --> Br- (g) + e
d. K(g) + E --> K+(g) + e
e. K(g) --> K+(g) + E
16. Electron affinity is the energy change associated with ….
a. the addition of an electron to a gaseous atom
b. the addition of an electron to an anion
c. the number of the outer electrons
d. the number of the outer shells
e. the electrons in the all shells
17. Element which has the lowest electron affinity is ….
a. 9P
b. 17Q
c. 35R
d. 53S
e. 85T
18. Element which has the lowest electro- negativity is ….
a. 11A
b. 12B
c. 14C
d. 15D
e. 17E
19. Element which has the highest electro- negativity is ….
a. 2A
b. 4X
c. 9Z
d. 17U
e. 20T
20. Electronegativity is the tendency of an atom to gain an electron(s) when combining with another element. Electronegativity decreases down a group (due to shielding) and increases as you move across a period (due to the increase in nuclear charge). The wrong comparison is ….
a. electronegativity Cl < Br
b. electronegativity O < F
c. fluor has greatest electronegativity
d. electronegativity metal < non metal
e. noble gas have low electronegativity

1 comment:

  1. It was very interesting for me to read the article. Thank author for it. I like such topics and anything that is connected to this matter. I would like to read more on that blog soon.
    Alex
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