Chapter 3 Atoms Flashcards
What’s an atom
Smallest particle of an element which takes part in a chemical reaction
What’s the other name for atomic number
Proton number
What’s an isotope
Atoms of an element with same atomic number but different mass number
Name some common radicals
Ammonia 1 Ammonium 1 Hydroxide 1 Nitrate 1 Sulphate 2 Sulfite 2 Sulphide 2 Carbonate 2 Oxygen 2 Phosphate 3
What’s electronic configuration
The representation of arrangements of electron in an orbit
What are group 7 element called
Halogen
What’s the color of fluorine
A colourless gas
What’s the other name of inert gases
Noble gases
Iron II oxide + aluminum > aluminum oxide + iron
What happened to aluminum
It was oxidized
Zn + pb(no3)2- pb + zn(no3)4
What’s the reaction called
Redox reaction
Name example of decomposition reaction
Cuso4 + H2 - cu + H2so4
What’s an electrovalent bond
Bond between a metal and non metals
Allotropy is caused by the
Possibility of more than one arrangement of atoms
Name an example of an allotrope
Carbon allotrope like
Diamond
Graphite
Sulphur
X-sulphur
B-sulphur
What’s the other name for electrovalent bonding
Ionic bonding
What’s a displacement reaction
More reactive metal takes place of less reactive metal of its group
What’s a catalyst
Substance that alters rate of the reaction
Steam reacts with carbon
Which one is a oxidizing argent
Steam
Name some properties of transition metals
Higher density
Higher melting and boiling point
They used as catalyst
What’s the color of chlorine
Is a green gas
What are group 0 elements called
Inert gases
What are periods
Are horizontal raw
What’s an element
Substance that cannot be split into two eg Mg
Name some examples of an isotope
Hydrogen
Carbon
What letter denotes atomic number
Z
What’s an atom made of
Nucleus - protons and neutrons
Electrons
What’s the charge of protons
Positive charge
Proton are same with
Electrons
What’s an ion
It’s a charged particle
What’s a compound
Substance made of two or more substances chemically combine
Cap
What are group
Vertical column of elements
Transition metals are in group
Between 2 : 3
What’s the color of bromine
Brown liquid
What reaction occurs between sodium hydroxide and sulphuric acid
Naturalization
What an oxidizing agent
Which causes oxidation
What’s decomposition
When a single compound broken into two product
Name displacement reaction
Zn + cuso - znso + cu
What are properties of ironic bonding
They soluble in water
They are brittle
They not volatile
They have high melting and boiling point
They do not conduct electricity
What is metabolic bonding
Bonding between metals
What are properties of metals
They have high densities
They high melting and boiling point
They ductile can drawn into wire
They are lustrous
They shinny
They sonorous produce sound
What is covalent bonding
Bonding between non metals
What is endothermic
Involves the absorbing of heat from it surrounding which has a positive enthalpy
What’s double decomposition
Two compound take part both decomposition and two new substance are formed
2 Fe + 3cl2 - 2 kecL3
What’s the reaction called
Synthesis reaction
When copper II oxide and ammonia to produce coper and nitrogen was it oxidized or reduced
Oxidation
What’s the color of ammonia
Black solid which sublime
Name properties of alkaline earth and alkali metals
Reactivity increase going down the group
Have low densities
Low melting point and boiling points most reactive
Element which less reactive displace more reactive metals
What are molecules
Formed by two more atoms
What’s a valency
Combining power of an element
What’s atomic mass number
The sum of proton number and neutron number
What’s the charge of neutron
They are neutral
What’s the charge of electrons
Negative
What are radicals
They substance which usually exist as molecules not atoms
What is a mixture
Substance made of two or more substances physically combine
What do we call group one element
Alkali metals
Which group are earth found
Group II
What are properties of halogens
They have even electrons in outmost shell
They more reactive non metals
They reactively increase going up the group
They become denser and denser going down the group
Name properties of inert gases
Un reactive because of eight outmost shell
Have an octant
Carbon dioxide + carbon - carbon monoxide
Carbon dioxide was
Reduced
Caco2 - cao + co2
What reaction occurred
Decomposition reaction
Name an example of decomposition reaction
Caco3 - cao + co2
What exothermic reaction
The release heart to surrounding which has a negative enthalpy
What are properties of covalent bonding
They are insoluble in water
They have low melting and boiling point
They do not conduct electricity in any state
What are allotrope
They existence of two or more forms of an element in the physical state
