Test
Period 3 Elements: Atomic and Physical Properties
Preguntas del test (10)
1Which of the two elements Mg and Al has a more stable structure?
- AMg
- BAl
- CBoth have stable structure
2As we go from left to right in a period, the atomic radius
- AIncreases
- BDecreases
- CDoes not change
3According to the Pauling scale, the most electronegative element is
- AFrancium
- BCesium
- CFluorine
4Electronegativity is defined as
- AA measure of the charge on the electrons surrounding the nucleus in an atom.
- BA measure of the tendency of an atom to attract a bonding pair of electrons.
- CA measure of the tendency of an atom to attract an electron towards itself.
5In going from left to right in a period, the electronegativity values
- ADecrease
- BIncrease
- CIncrease and then decrease
6The electronegativity value of Argon is
- A0.7
- B3
- CNo value
7The structures of elements, as you go from left to right in a period, change as follows
- ANa, Mg and Al have metallic structures.
Si has giant covalent structure.
P, S, Cl, Ar are simple molecules. - BNa, Mg and Al are simple molecules.
Si has metallic structure.
P, S, Cl, Ar have a covalent structure. - CAll elements have same structure.
- ANa, Mg and Al have metallic structures.
8The electrical conductivity in period 3, as you move from left to right in the period
- AIncreases
- BDecreases
- CRemains constant
9The forces of attraction between the molecules of Phosphorous, Sulphur, Chlorine and Argon are
- AVan der Waal attractions
- BIonic bonds
- CCovalent bonds
10The melting and boiling points of Phosphorous, Sulphur, Chlorine and Argon as compared to ones of previous elements in the period are
- ALower
- BHigher
- CEqual
Información
- Descripción
- Quiz for Chapter 1, textbook for Chemistry FSc Part 2
- Autor
- haaniaaamir13
- Idioma
- English
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- 101
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