Periodic Table/Acids, Bases and More! -Cards
The maximun number of covalent bonds formed by Nitrogen is ______________.
4
How many periods are in the Periodic Table?
7
What is a 'mole'?
A mole is the amount of pure substance containing the same number of chemical units as there are atoms in exactly 12 grams of carbon-12
What does 'CH3COOH' stand for?
Acetic/ Ethanoic Acid
The most reactive 'family' of metals are the __________________.
Alkali. (metals)
What is the 13th Element on the Periodic Table?
Aluminium
Elements on the Periodic Table are organized by their ________________.
Atomic Number.
What is the chemical symbol for Gold?
Au
Is Sodum Hydroxic an Acid or a Base?
Base
What is the 5th Element on the Periodic Table?
Boron
What is the most commonly used bleaching agent?
Chlorine
What is the hardest form of Carbon?
Diamond
True or False? Electrons carry a positive charge.
False
True or False? The mass number of a nucleus always weighs less than its atomic number.
False
Which is more malleable: Silver or Gold?
Gold
What is a metal that is usually extracted from Sea-water?
Magniesium
The ability to pound a metal into a flat sheet without breaking it is called _______________.
Malleability.
At room temperature, what is the only metal that is in a liquid state?
Mercury
What are the Elements 'under the stairs' called?
Metals
What's the molecular formula for Phosphorous?
P4
What Element has the chemical symbol, 'K'?
Potassium
The nucleus of an atom consists of _______________.
Protons & Neutrons
What do the groups in the Periodic Table have in common?
The number of Valence electrons ( e-)
True or False? A neutron has no net electric charge.
True
True or False? Acids have a pH below 7.
True
True or False? The mass number of an atom is equal to the numer of nucleons
True
What Element has the chemical symbol, 'W'?
Tungsten
What are the outermost electrons of an atom called?
Valence e- (electrons)
What is 'H2O' commonly known as?
Water
What is the meaning of a 'half-life'?
the time taken for the radioactivity of a specified isotope to fall to half its original value
