Brainscape's Knowledge GenomeTM

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


See full index

Chem > c2 periodic table > Flashcards

c2 periodic table Flashcards

1
Q

What is an alkali metal?

A

Alkali metals are elements in Group 1 of the periodic table.

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

What are halogens?

A

Halogens are elements in Group 7 of the periodic table.

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

Where are the transition elements?

A

Transition elements are elements in the central block of the periodic table.

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

What are the noble gases?

A

Noble gases are elements in Group 0 of the periodic table.

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

How are elements arranged in the periodic table?

A

Elements are arranged in vertical groups and horizontal periods.

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

What do elements in the same group have in common?

A

They have the same number of electrons in the valence shell, giving them similar chemical properties.

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

Elements that react to form positive ions (lose electrons) are…

A

Metals.

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

What are alkali metals like at room temperature?

A

Alkali metals are soft solids at room temperature.

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

What are alkali metals’ densities like?

A

Alkali metals have low densities.

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

What happens to alkali metals’ melting and boiling points as you go down the group?

A

Their melting and boiling points decrease.

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

Why are alkali metals reactive?

A

They are reactive because they only have 1 electron in their outer shell and lose it easily to form stable ions.

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

What happens to the density of alkali metals as you go down the group?

A

Density increases as you go down the alkali metals.

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

What is effervescence?

A

Effervescence is the formation of bubbles or fizz.

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

What are some observations of when Lithium reacts with water?

A

Lithium floats on the water, effervesces, and turns the universal indicator purple.

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

What are some observations of when Sodium reacts with water?

A

Sodium floats on the water, effervesces, and turns the universal indicator purple.

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

What are some observations of when Potassium reacts with water?

A

Potassium floats on the water, effervesces, burns with a pink flame, and explodes.

17
Q

What are some observations of when Lithium reacts with Oxygen?

A

Lithium burns with a red flame to form a white powder.

18
Q

What are some observations of when Sodium reacts with Oxygen?

A

Sodium burns with a yellow/orange flame to form a white powder.

19
Q

What are some observations of when Potassium reacts with Oxygen?

A

Potassium burns with a lilac flame to form a white powder.

20
Q

What are some physical properties of Group 7 elements?

A

They are poor conductors of heat and electricity, brittle, and dull.

21
Q

What happens to the melting and boiling points of halogens as you go down the group?

A

Melting and boiling points increase as you go down the halogens.

22
Q

What happens to reactivity as you go down the halogens?

A

Reactivity decreases as you go down the halogens.

23
Q

Why does reactivity decrease going down the halogens?

A

As the atomic radius and electron shielding increase, the attraction of the nucleus on the electron being gained decreases.

24
Q

What is the outer electron configuration of halogens?

A

All halogens have 7 electrons in their valence shell.

25
Q

Why does reactivity increase going down the alkali metals?

A

As the atomic radius and electron shielding increase, the attraction of the nucleus on the electron being lost decreases, making it easier to lose.

26
Q

What are transition metals good conductors of?

A

Heat and electricity.

27
Q

What are transition metals’ densities like?

A

Transition metals have high densities.

28
Q

What are transition metals’ melting points like?

A

Transition metals have high melting points.

29
Q

How do transition metals compare in reactivity to alkali metals?

A

Transition metals are much less reactive than alkali metals.

30
Q

What colour are compounds of transition elements?

A

They are brightly coloured.

31
Q

What metals are often used as catalysts?

A

Transition metals are often used as catalysts.

32
Q

What do transition elements form?

A

Transition elements form more than one type of ion.

33
Q

What are the observations when chlorine water is added to potassium bromide?

A

The solution changes from colourless to yellow.

34
Q

What are the observations when chlorine water is added to potassium iodide?

A

The solution changes from colourless to red-brown.

35
Q

What are the observations when bromine water is added to potassium iodide?

A

The solution changes from yellow to orange.

36
Q

Why are noble gases not reactive?

A

They have a full outer shell, which makes them stable.

Chem (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions