ATOMIC MODEL
Indivisible
How many periods and groups does the periodic table have?
7 periods and 18 groups
In what year Lavoisier created the first scientific list with elements, and how many elements were they?
1789 with 33 elements
How many blocks are in the periodic table?
Four
True or false
Melting ice into water counts as a chemical change
False
what is the other name used for Rutherford's atomic model?
Nuclear model
True or false
all the elements have their own unique atomic number and average atomic mass
True
In 1869, this Russian chemist published the first widely recognized periodic table, famously leaving gaps for undiscovered elements
Dmitri Mendeleev
how do you know how many electrons does an element have?
With the atomic number
what is a chemical change?
when matter transforms into a completely new substance with different chemical properties
Who was the scientist that discovered electrons?
Sir J. J. Thomson
Name ANY 8 elements on the periodic table
varies
what does the capital letter in each tile represent and who proposed that idea?
is an abbreviation of the name of the element based on the Greek or Latin name, was proposed by John Jacob Berzelius
Mention the maximun of electrons that can be in each block
s block 2, p block 6, d block 10, f block 14
Name two chemical change
change of color, odor, temperature or consistency
Name the 3 sub particles of the atom and their charges
Electron - negative charge
Proton - Positive charge
Neutron - Neutral charge
Alkali Metals 1, Alkaline Earth Metals 2, Halogens 17, and Noble Gases 18
Who proposed the law of octaves and what does the law say?
Newlands, he said we can separate the elements in groups of 8 based in atomic mass
What is the rule for block d and f?
Name all the steps of the scientific method
Observation, Question, Research, Hypothesis, Experiment, Analysis, Conclusion
Mention each year (5) a new atomic model was proposed?
1808, 1897, 1911, 1913, 1926
Name all the parts of a periodic table tile
atomic number, average atomic mass, name, chemical symbol
Seaborg discovered transuranic elements but also added two more rows to the periodic table, that are called:
Lanthanides and actinides
on the board write down ALL the electron configuration chart (in less than a minute)
1s → 2s → 2p → 3s → 3p → 4s → 3d → 4p → 5s → 4d → 5p → 6s → 4f → 5d → 6p → 7s → 5f → 6d → 7p
The first law of chemistry
matter cannot be created or destroyed, just transformed