Brainscape's Knowledge GenomeTM

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


See full index

Chemistry > Atoms And Elements💜☢️ > Flashcards

Atoms And Elements💜☢️ Flashcards

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

What are atoms ?

A

Atoms are the smallest particles of matter, that we cannot break down further by chemical.

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

We know the arrangement of electron thanks to the work of the Danish physicist ….

A

Niels Bohr

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

A substance made up of only one type of atom is called an

A

Element

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

A substance made up of two or more types of atoms joined together by chemical bonds is called …

A

A compound

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

A …. contains two or more elements or compounds that are not chemically bonded together .

A

Mixture

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

What is matter ?

A

Anything that has volume,mass and occupies space

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

An atom consists of 3 subatomic particles. Which are ….

A

Protons
Neutrons
Electrons

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

The atomic structure consists of …..

A

A nucleus and a cloud of electron

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

The nucleus of an atom consists of …… and ….

A

Protons and neutrons

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

Protons are …….. charged

A

Positively

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

Neutrons have ….. charge

A

No

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

Electrons have a …… charge.

A

Negative

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

The unit mass of both neutrons and protons is …

A

1

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

…… and ….. determine the mass of an atom

A

Protons and neutrons

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

The cloud of electron consists of .. and …

A

Electron and atomic shells / electron shell

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

Electrons are ….. charged and have a mass of……

A

Negatively

1/1840..almost nothing

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

An atom contains the same number of …. and …

A

Protons and eletrons

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

Why are atoms neutral ?

A

This is because they contain the same or equal number of positively charged protons and negatively charged electrons. So their charge cancel out each other

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

What is an atomic number/proton number

A

The number of protons in an atom

20
Q

Nucleon number,which is also called…..

Is the number of…. and….. in an atom

A

Mass number

Protons and neutrons

21
Q

Nucleon number =

A

protons + neutrons

22
Q

Matter exsits in 3 states. Namely …

A

Solid
Liquid
Gas

23
Q

What is the periodic table

A

It is a table of elements arranged in their order of increase proton number

24
Q

The periodic table consists of rows and columns
Rows are called….
Columns are called…

A

Periods

Groups

25
Q

The periodic table consists of …. groups

A

8

26
Q

(Group 1 to 3 )The left side of the periodic table contains …..

A

Metals

26
Q

(Group 1 to 3 )The left side of the periodic table contains …..

A

Metals

27
Q

The right side (group 4 to 8) contains …

A

Non metals

28
Q

The block of elements between group 2 and threw are called …

A

Transition elements/metals

29
Q

Group 1 are

A

Alkali metals

30
Q

Groups 2 are

A

Alkali earth metals

31
Q

Groups 3 has no name but

A

rather soft, silvery-white metals, although their hardness increases with atomic number.

32
Q

Group 4 are

A

metalloids

33
Q

Group 3 5 and 6 have no name

A
34
Q

Group 6 elements are called…

A

chalcogens

35
Q

All …. and other 3 elements , namely …….,…….. and …… are diatoms

A

Halogens
Hydrogen
Oxygen
Nitrogen

36
Q

The groups/columns, tell us the number of electrons in the outer most shell also called … Electrons,last shell
Elements of the same group have equal valency

A

Valency

37
Q

……….. , tell us the number of shells of an element

Have some number of shells but different groups

A

Period/rows

38
Q

What is electronic configuration?

A

It is the arrangement of electron in shells of an element

2.8.8

39
Q

What are isotopes ?

A

These are atoms with the same number of protons and electrons but different number of neutrons.

40
Q

There are three types of carbon isotopes ,namely….

A

Carbon 12…6 neurons
Carbon 13…7 neutrons
Carbon 14….8 neutrons

41
Q

What is the significance of the electronic configuration of atoms ?

A

The electronic configuration of an atom is very important because the number of electrons in the other most shell (valency), determines the chemical property of an element including how it joins/bonds with other elements

42
Q

Group 8 gases are non reactive or ….
Their shells are thought of as being full Shells,in the outer most shell
Expect for helium

A

Inert

43
Q

Ionic bonding is …

A

It occurs between non metals and metals

44
Q

Covalent bonding involves ….

A

the sharing of electron in non metals
Nh3
CH4
HF

45
Q

Metallic bonding occurs in …

A

Metals only aluminium…magnetism… sodium….

Chemistry (4 decks)

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