Toggle navigation
التسجيل
تسجيل الدخول
الرئيسية
»
الاختبارات
»
الترم الأول
»
Unit 1 - Lesson 2: Graduation of Properties of Elements in the Modern Periodic Table
Unit 1 - Lesson 2: Graduation of Properties of Elements in the Modern Periodic Table
نسخ
تكرار
1
It is the ability of the atom in covalent molecule to attract the electrons of the chemical bond towards itself.
Electrogravity
Electronegativity
Positive ion
Negative ion
2
It is an atom of a metallic element which lost one electron or more during the chemical reaction.
Negative ion
Electronegativity
Electrogravity
Positive ion
3
It is an atom of nonmetallic element which gained an electron or more during the chemical reaction.
Electronegativity
Electrogravity
Positive ion
Negative ion
4
It is a covalent compound, in which the difference in electronegativity between its elements is relatively high
Polar compound
No correct answer
ionic compound
5
They are the elements, which have less than four electrons in their outermost energy levels.
No correct answer
Metals
Nonmetals
Metalloids
6
They are the elements, which have more than four electrons in their outermost energy levels.
No correct answer
Metals
Nonmetals
Metalloids
7
It is a series in which metals are arranged in a descending order according to their chemical activity.
No correct answer
Chemical activity series
physical activity series
biological activity series
8
They are the elements, which have the properties of both metals and nonmetals.
Metalloids
Metals
Nonmetals
No correct answer
9
The atomic radius is used as a measurement of the atomic size of the atom and its measuring unit is..........
picometre.
millimetre.
nanometre.
metre.
10
In periods, by increasing the atomic number, the.........
atomic size decreases.
no correct answer.
atomic size increases.
atomic radius increases.
11
During the chemical reactions, metal atoms tend to............
gain electrons and change into positive ions.
gain electrons and change into negative ions.
lose electrons and change into negative ions.
lose electrons and change into positive ions.
12
An element (X), whose atomic number is 13 so, the number of electrons in its lon is..........
11
12
10
8
13
Each period in the periodic table starts with.........
metalloid.
nonmetal.
inert gas.
metal.
14
By increasing the atomic number within the period, the...........
nonmetallic property increases.
metallic property decreases.
atomic size decreases.
all the previous answers.
15
By increasing the atomic number within group (1A), the .........
metallic property increases.
all the previous answers.
atomic size decreases.
nonmetallic property increases.
16
......... is the least metallic element in group (1A).
Li
Na
K
Cs
17
Metal oxides (as sodium oxide) are........ oxides.
no correct answer
acidic
basic
amphoteric
18
All of the following metals react with water except........
Cu
K
Na
Mg
19
Which of the following elements reacts with dilute hydrochloric acid ?...........
Zn
Cu
C
S
20
The 3rd period starts with elements whose oxides are as the following........
basic, amphoteric. then acidic.
basic, acidic, then amphoteric.
acidic, amphoteric, then basic.
acidic, basic, then amphoteric.
×
بلاغ عن خطأ
مقدم البلاغ
طالب
معلم
السؤال
تفاصيل الخطأ
إرسال
إلغاء
×
مشاركة
#
#
نسخ
نسخ الرابط