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WorksheetsElectronic Structure
Total questions: 1
Worksheet time: 7mins
Why do most atoms react with other atoms?
To increase their atomic number
To fill their outer shell with electrons
To become noble gases
To reduce their mass
What is the maximum number of electrons the second shell can hold?
32
18
8
2
How many electrons does sodium have in its outermost shell?
1
8
2
7
Which group of elements have a completely full outer shell and are mostly unreactive?
Transition metals
Noble gases
Alkaline earth metals
Alkali metals
What is the electron structure of argon?
2, 8, 18
2, 8, 8, 1
2, 8, 7
2, 8, 8
What happens to the charge of a calcium atom when it loses two electrons?
It becomes a 2- ion
It remains neutral
It becomes a 2+ ion
It does not change
How can fluorine achieve a stable electron configuration?
By gaining one electron
By losing two electrons
By sharing electrons
By losing one electron
What is the correct way to represent the electron structure of calcium after it has lost two electrons?
2, 8, 8, 2
2, 8
2, 8, 10
2, 8, 8
What is the atomic number of sodium?
12
13
11
10
What is the electron structure notation for an atom with 2 electrons in the first shell, 8 in the second, and 7 in the third?
2, 7, 8
2, 7, 7
2, 8, 7
2, 8, 8
