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WorksheetsElectrons in Atoms
Total questions: 15
Worksheet time: 10mins
How many electrons per shell does alumunium (13Al) have?
2,8,3
2,3,8
2,10,1
2,2,9
How many electrons per shell does potassium (19K) has?
2,8,8,1
2,8,9
2,8,2,7
2,4,6,7
What atom matches this electron configuration?
1s22s22p63s2
20Ca
12Mg
13Al
19K
Which electron configuration is correct for oxygen (8O)?
1s22s22p63s2 3p64s23d104p5
1s22s22p4
1s22s22p6
1s22s22p63s23p64s23d1
Which atom matches this electron configuration?
1s22s22p63s23p64s23d10
30Zn
29Cu
28Ni
32Ge
Which atom matches this electron configuration?
1s22s22p63s23p64s23d10
30Zn
29Cu
28Ni
32Ge
What atom matches this electron configuration?
1s22s22p63s2
20Ca
12Mg
13Al
19K
The electron configuration of an element is [Ne] 3s2 3p2. Which element is it? [atomic number: Ne = 10]
13Al
6C
14Si
18Ar
An Atom contains proton, neutron, and electron. Which of this statement is FALSE about electron?
Electron is located outside part of a nucleus
Electron has negatively charged
Amount of electron is same with the amount of proton in neutral condition
Mass of electron is 1836 bigger than proton
Which element that has 5 valence electrons?
6C
12Mg
17Cl
7N
How many valence electron that is located in Silicon (14Si)?
2
7
4
8
Which element is located in the noble gas group?
Ar
Ag
Mg
Au
Which of these atoms has the smallest number of neutrons?
11H
73Li
42He
94Be
An atom in which the number of proton is greater than the number of neutrons is?
23892U
5626Fe
11H
199F
