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Modern periodic table

Total questions: 50

Worksheet time: 50mins

Name
Class
Date
1.

Element X it's place in P. T

is third period and 7A group

a)

C

b)

CL

c)

F

d)

NA

2.

Deduce the place of sulpher if you know that it's atomic no. 16

a)

P:3 G:4

b)

P: 2 G:6

c)

P:3 G:16

d)

P:2 G:5A

3.

If an element in group 14 thus its outer shell contain :

a)

14 electrons

b)

4 electrons

c)

2 electrons

d)

3 electrons

4.

Element Y in the second period reacts with chlorine and dorm a salt with formula ( YCl2)

a)

B

b)

Mg

c)

Be

d)

Na

5.

Group no. 18 in the modern periodic table take the no.

a)

0

b)

1A

c)

2A

d)

7A

6.

All elements are solids and gases except... :

a)

Hg / cl

b)

Hg. / Be

c)

Br / Hg

d)

Ag. /. Hg

7.

Deduce the element which located before ( X 12) in the period and the element which below X 12 in the group

a)

Na 11 / Ca 20

b)

Li 3 / Mg 12

c)

O 8 / Cl 17

d)

CL 17 / S 16

8.

The element in group 1 and 2 called

a)

P BLOCK

b)

d block

c)

F block

d)

S block

9.

P BLOCK contains..... Groups

a)

7

b)

10

c)

2

d)

6

10.

F block consist of..... Series

a)

2

b)

3

c)

4

d)

5

11.

d block placed in the middle of M.P. T and called

a)

Inner Transition elements

b)

Representative elements

c)

Transition elements

d)

Outer Transition elements

12.

A non metal element X reacts with sodium to produce Na2X deduce the element X knowing that its period is no. 3

a)

O 8

b)

F 9

c)

CL 17

d)

S 16

13.

Zero group is equvilant to

a)

18

b)

17

c)

16

d)

14

14.

Periodic table arrange elements according to

a)

Increasing atomic no.

b)

Arrangement of electrons in principal levels

c)

Arrangement of electrons in sublevels

d)

none

15.

The elements of........ Different in the proparties

a)

Group

b)

Period

c)

Block

d)

Periodic table

16.

The Periodic Table is a tool for scientists to predict the chemical behavior of elements.

a)

True

b)

False

17.

They are also called "Families" because they share characteristics in common.

a)

Periods

b)

Groups

18.

Elements in the Modern Periodic table are arranged in order of___

a)

Decreasing atomic number

b)

Decreasing atomic mass

c)

Increasing atomic number

d)

Increasing atomic mass

19.

Modern periodic law had been given by ____

a)

Moseley

b)

Mendeleev

c)

Lavoisier

d)

Lother-Mayer

20.

How many periods and groups are present in the periodic table?

a)

7 periods and 18 groups

b)

8 periods and 7 groups

c)

7 periods and 7 groups

d)

8 periods and 8 groups

21.

The elements in group zero are called___

a)

Alkali metals

b)

Transition metals

c)

Inert ( Noble ) gases

d)

Alkali Earth metals

22.

In periodic table elements with same number of shells/orbits are placed in___

a)

Different groups

b)

same groups

c)

same periods

d)

different periods

23.

Which of the following elements has 2 shells and both are completely filled?

a)

Helium 2

b)

Neon 10

c)

Calcium 20

d)

Boron 5

24.

An element X belongs to the 3rd period and 1st group of the periodic table. What is the number of valence electrons in its atom?

a)

1

b)

3

c)

6

d)

8

25.
The atomic number tells you what?
a)
number of electrons
b)
number of protons
c)
number of neutrons
d)
both electrons and protons in an atom.
26.
Elements which are shiny, conduct electricity and heat are called
a)
metal
b)
nonmetal
c)
metalloid
d)
nonexistent
27.
The atoms along the staircase are called 
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
28.
How many electrons does a Copper atom have?
a)
63
b)
29
c)
92
d)
34
29.
What's a valence electron?
a)
electrons in the second energy level
b)
electrons in the outermost energy level
c)
the atomic number
d)
electrons in the first level
30.
What is the atomic mass equal to?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
31.

The atoms on the right of the staircase are called

a)

metalloids

b)

non-metals

c)

metals

d)

noble gases

32.

As you move down the group in the periodic table atomic size increases

This is because ____________.

a)

The atoms have more mass.

b)

The atoms have more protons.

c)

The number of energy levels increases

d)

The atoms have more nuetrons

33.

As you move across the period of the periodic table from left to right atomic size decreases because, ______________.

a)

the atoms have more mass.

b)

the atoms have less mass

c)

The attraction force of the positive protons increases

d)

the atoms have less electrons.

34.

Which one has the largest radius?

a)

Lithium (Li, atomic #3)

b)

Boron (B, atomic #5)

c)

Flourien (F , atomic #9)

d)

Nitrogen (N, atomic #7)

35.

What is the measuring unit of atomic radius?

a)

Picometer

b)

Centimeter

c)

Millimeter

d)

Nanometer

36.

Look at Group 1, Which of the following atoms has the largest atomic radius?

a)

potassium (K)

b)

rubidium (Rb)

c)

Lithium (Li)

d)

cesium (Cs)

37.

Electronegativity is...

a)

the ability of an atom to attract the electrons in a compound

b)

the ability of an atom to lose electrons

c)

the energy required to remove an electron from a specific atom

d)

how easy it is to make friends.

38.

Use your knowledge and electronegativity sheet to predict what the following compound is classified as.

a)

polar covalent

b)

nonpolar covalent

c)

ionic

d)

metallic

39.

which is a metaloid

a)

Ge

b)

Mg

c)

He

d)

O

40.

Water molecule is polar because the difference in electronegativity is ................

a)

Very low.

b)

Very high

c)

Relatively high

41.

Metal oxides are basic because .....

a)

they form alkaline solutions

b)

they form acidic solutions

c)

they are simple

d)

they are dull

42.

Magnesium reacts with oxygen to make

a)

magnesium oxide / basic in nature

b)

magnesium oxide / acidic in nature

43.

When sodium reacts with water it produces ___________

a)

hydrogen

b)

carbon dioxide

44.

Metal oxides which show both the properties of acids and base are called

a)

Amphoteric oxides

b)

Metamorphic

c)

Basic oxides

d)

Acidic oxides

45.

The electronic configurations of three ele¬ments X, Y and Z are

X — 2, 8

Y — 2, 8, 7

Z — 2, 8, 2.

Which’of the following is correct?

a)

X is a metal

b)

Y is a metal

c)

Z is a non-metal

d)

Y is a non-metal and Z is a metal

46.

What colour does a base turn red litmus paper?

a)

Red

b)

Blue

c)

Violet

d)

Green

47.

Predict the product(s) of this reactio:

Mg + 2HCl →

a)

MgHCl

b)

MgCl2 + H2

c)

MgCl2 + H

d)

MgCl + H2

48.

According to chemical activity series which metal is more reactive than calcium?

a)

magnesium

b)

potassium

c)

silver

d)

aluminum

49.

Predict the product(s) of this reactio:

MgO + H2O →

a)

MgHO

b)

MgCl2 + H2

c)

Mg(OH)2

d)

MgO + H2

50.

Predict the product(s) of this reactio:

CO2 + H2O →

a)

COHO

b)

H2CO3

c)

H2CO2

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