Chemical bonding Flashcards
1
Q
How does the nucleus of an atom change when it gains electrons?
A
It doesn’t
2
Q
When atoms form ions, they try to fill up or empty their __?__ electron shell.
A
outer
3
Q
If an atom gains electrons, what charge does the resulting ion have?
A
Negative
4
Q
What does the group number tell you?
A
the number of electrons in an atom’s outer electron shell
5
Q
How many types of chemical bonds are there?
A
3
6
Q
name the types of chemical bond
A
covalent
ionic
metallic
7
Q
Which type of bonding happens between most non-metal elements?
A
Covalent
8
Q
Calcium is in group 2 of the periodic table. What happens to a calcium atom when it becomes an ion?
A
It loses 2 electrons to become positive ion
9
Q
What is another name for negative ions?
A
Anions
