Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

S3 Chem > Periodic Table And Atomic Stucture > Flashcards

Periodic Table And Atomic Stucture Flashcards

You may prefer our related Brainscape-certified flashcards:
AP® Chemistry flashcards Periodic Table flashcards Chemistry 101 flashcards Organic Chemistry 101 flashcards
1
Q

How is the periodic table arranged

A

The elements in order of increasing atomic number

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

What can the periodic table determine

A

Wether an element is metal or non metal

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

What are groups in the periodic table

A

Groups are columns containing elements with the same number of outer electrons indicated by the group number

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

What do elements in the same group have in common

A

Elements within a group share the same valency and have similar chemical properties because they
have the same number of electrons in their outer energy levels.

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

What makes up an atom?

A

A nucleus, containing protons and neutrons, and electrons orbit the nucleus

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

What charge does a proton have

A

positive

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

what charge does a electron have

A

One - negative

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

What charge does a neutron have

A

Neutral = 0

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

What mass does proton, neutrons and electrons have

A

Protons and neutrons have an approximate mass of one atomic mass unit and electrons, in
comparison, have virtually no mass.

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

What is the atomic number

A

The number of protons in an atom

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

How do u know the number of electrons and protons are the same

A

In a neutral atom 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
12
Q

What is the mass number

A

The mass number of an atom is equal to the number of protons added to the number of neutrons

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

What are isotopes

A

Isotopes are defined as atoms with the same atomic number but different mass numbers, or as
atoms with the same number of protons but different numbers of neutrons.

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

What is nuclide notation

A

Nuclide notation is used to show the atomic number, mass number (and charge) of atoms (ions)
from which the number of protons, electrons and neutrons can be determined.

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

How is ram calculated

A

The average atomic mass has been calculated for each element using the mass and proportion of
each isotope present. These values are known as relative atomic masses.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What do covalent bonds for between

A

Non metal atoms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is a covalent bond

A

A covalent bond forms when two positive nuclei are held together by their common attraction for a
shared pair of electrons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

How can simple molecules be described

A

These molecules can be described as linear, angular, trigonal pyramidal or tetrahedral.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

How. many bonds can be formed between atoms

A

More than 1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What are the 7 diatomic molecules

A

H2, 02, N2, F2, Cl2, Br2, I2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What is an element

A

An element is a substance made out of one type of atom

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What is a compound

A

A compound is when 2 or more different elements chemically join/bond together

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What is a molecule

A

A molecule is 2 or more atoms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What percentage of the periodic table is metals

A

80%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

What percentage of the periodic table is non metals

A

20%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

What is group 1

A

Alkali metals

27
Q

What is group 2

A

Alkaline Earth metals

28
Q

Between group 2+3

A

Transition metals

29
Q

Group 7

A

Halogens

30
Q

Group 8

A

Noble gases

31
Q

Why don’t the noble gases react

A

The noble gases have a full outer energy level . This makes them unreactive and stable

32
Q

If a molecule has 2 atoms what shape is it?

A

Liner

33
Q

If a molecule has 3 atoms what is its shape called?

A

V-shaped or angular

34
Q

If a molecule has 4 atoms what is its shape called?

A

Trianganal pyramidal

35
Q

If a molecule has 5 atoms what is its shape called?

A

Tetrahedral

36
Q

Mass of an electron

A

1/2000

37
Q

Mass of proton

A

1

38
Q

Mass of neutrons

A

1

39
Q

What does covalent molecular substances have between molecules

A

weak forces

40
Q

Do covalent molecular have high or low melting or boiling points

A

Low melting and boiling points

41
Q

Do covalent molecular substances conduct electricity

A

No because they do not have charged particles which are free to move

42
Q

Do covalent networks have strong bonds or weak forces

A

Strong bonds within one giant structure

43
Q

Do covalent networks have low or high melting and boiling points

A

High because the network of strong bonds is not easily broken

44
Q

Do covalent networks dissolve or conduct

A

No beca they have no charged particles that are free to move

45
Q

What are ions

A

Ions are formed when atoms lose or gain electrons to obtain the stable electron arrangement of a
noble gas.

46
Q

Generally what charges are metals and non metals

A

In general, metal atoms lose electrons forming positive ions and non-metal atoms gain electrons
forming negative ions. Ion-electron equations can be written to show the formation of ions through
loss or gain of electrons.

47
Q

What are ionic bonds

A

The electrostatic attraction between positive and negative ions. They want to become stable Ionic bonds transfer electrons

48
Q

What ionic compounds structure

A

3D lattice

49
Q

Do ionic compound have high or low melting and boiling points

A

High because strong ionic bonds must be broken in order to break up the lattice

50
Q

In general are ionic compounds soluble in water

A

Yes

51
Q

Do ionic compounds conduct

A

Yes but only when molten or in solution as the lattice structure breaks up allowing the ions to be free to move

52
Q

If a compound has 2 elements it ends in what

A

‘ide’

53
Q

If the compound ends in ‘ite’ or ‘ate’ what does this tell us

A

That oxygen is present

54
Q

mono

A

1

55
Q

di

A

2

56
Q

Tri

A

3

57
Q

Tetra

A

4

58
Q

Penta

A

5

59
Q

Hexa

A

6

60
Q

Hepta

A

7

61
Q

Covalent bonds exists between what

A

Non metals only

62
Q

Ionic bonds exists between

A

Compounds ie metals and non metals

63
Q

What is electricity

A

The flow of electrons

S3 Chem (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions