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WorksheetsELECTRON ARRANGEMENT
Total questions: 21
Worksheet time: 12mins
An atom has 10 protons in its nucleus. how many electrons does the atom have?
10
11
12
13
X atom has 12 protons. what is the electron arrangement of atom X?
2.8
2.8.8
2.8.2
2.10
Y atom has 13 protons in its nucleus. How many valence electrons does Y atom have?
13
3
10
8
D atom have 12 protons. Which group and period does element D belong to in periodic table?
Group 12, Period 3
Group 2, Period 3
Group 12, Period 13
Group 2, Period 13
C atom has 17 protons. Which group and period does element C belong to in the periodic table?
Group 7, Period 3
Group 7, Period 13
Group 17, Period 3
Group 17, Period 13
E2+ has an electron arrangement of 2.8. how many proton does E2+ have?
10
8
12
2
F3- has an electron arrangement of 2.8.8. How many protons does F3- have?
15
18
8
10
the electron arrangement of G2+ is 2.8.8. Select the correct group and period of element G
Group 18
Group 2
Period 3
Period 4
the electron arrangement of J2- is 2.8. Select the correct group and period of element J
Group 18
Group 16
Period 2
Period 3
what is the electron arrangement of atom N?
2.
2.8
2.5
2.8.8
What is the group and the period of this element?
Group 1
Group 18
Period 2
Period 3
an atom has the electron arrangement of 2.8.7. it also has 16 neutrons in its nucleus. what is the nucleon number of this atom?
17
16
33
32
the electron arrangement of O is 2.6. what is the proton number of O?
6
2
8
10
the electron arrangement of Z atom is 2.8.8.1. its nucleon number is 38. will Z atom be radioactive?
Yes
No
the electron arrangement of L3+ is 2.8. its nucleon number is 24. how many neutrons are there in the nucleus of L3+?
10
11
12
13
which atom is from the same group as an atom with proton number of 11?
p = 3
p = 4
p = 5
p = 6
which element is from the period as X2+ (e = 10)
Y ( e = 10)
E- (e = 18)
T+ (e = 18)
R2+ (e = 18)
the electron arrangement of X2+ is 2.8.8. what is the proton number of X?
18
16
20
8
which electron arrangement that represents the element from Group 13 and Period 3?
2.8.13
2.8.8
2.8.3
2.13
Sodium-23 has 12 neutron in its nucleus. What is the electron arrangement of Na atom?
2.8.2
2.8.1
2.1
2.2
Sodium-23 has 12 neutron in its nucleus. What is the electron arrangement of Na atom?
2.8.2
2.8.1
2.1
2.2
