Quiz questions
暂无描述。系统推荐的高质量记忆内容，适合每天坚持背诵学习。
卡片预览 (14 张)
Which element is found in group 1 period 1?
Hydrogen
Which element is found in group 1 period 4?
Potassium
Which element is found in group 0/8 period 1?
Helium
Which element is found in group 4 period 2?
Carbon
Which element is found in group 2 period 3?
Magnesium
Which element is found in group 3 period 3?
Aluminium
Which element is found in group 7 period 4?
Bromine
How many electrons do group 1 atoms have in their outer shell?
1
How many shells of electrons do period 3 elements have?
3
What unique feature do the arrangements of the group 0 have?
The number of eletrons always perfectly fit the maximum the shells can hold
What is the link between the group number and the number of outer shells?
Group number is how many elctrons in outer shell
What element has a total of 3 shells with 7 electrons in the outer shell?
Chlorine
What element has a total of 2 shells with 3 electrons in the outer shell?
Boron
What element has only one shell with two electrons in it?
Helium