Atomic Structure Flashcards

1
Q

Define atom

A

An atom is the smallest indivisible particle of an element that can take part in a chemical reaction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Define nuclide

A

Used to describe an atomic species of which the atomic number and mass number is specified

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Define atomic number

A

Atomic number is number of protons present in an atom

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Define mass number

A

Mass number is the total number of protons and neutrons in the atom

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Why are atoms electrically neutral

A

The number of electrons is equal to the number of protons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Define isotopes

A

Isotopes are atoms of the same element with different number of neutrons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Isotopes have __ chemical properties but __ physical properties

A

same(same number of electrons), different(different relative masses of isotopes)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Define orbital

A

A region of space around the nucleus with highest probability of locating the electrons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Difference between s orbitals

A

Differ in size, all spherical in shape

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Difference between p orbitals

A

They have dumb-bell shape, different orientations in space

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Maximum number of electrons in f subshell

A

14 (7 orbitals * 2 electrons each)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Why do noble gases exist naturally as monatomic elements

A

They tend to be unreactive due to stable electron arrangements

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Define octet rule

A

When atoms react to form compounds, they tend to combine in a way that they each have eight electrons in their outer shell, giving them same electronic configuration as noble gas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Order of sub-energy levels (subshells)

A

s, p, d, f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Define isoelectronic species

A

Atoms or ions with same number of electrons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly