WorksheetsATOMS AND ELEMENTS
Total questions: 17
Worksheet time: 14mins
Democritus named the tiny particles in a matter as Atomos. What does atomos means?
(a)
What do we call to the central part of an atom which is composed of protons and neutrons?
(a)
Who is the philosopher who rejected the concept of atoms?
(a)
Which theory states that our universe came from an extremely hot, extremely dense and an expanding ball of Gas?
(a)
The sum of the exponents of the Electron Configuration of an element is equal to the element's (a) .
Which of the following elements is formed after the explosion of Super Novas?
Helium
Oxygen
Chromium
Cobalt
Which law/theory states that the total mass of the reactants is equivalent to the total mass of product?
Law of Definite Proportion
Law of Conservation of Mass
Law of Conservation of Energy
Dalton's Theory
Who proposed that the four basic elements are Water, Air, Wind and Fire?
Ang
Heraclitus
Empedocles
Leucipus
What is the last orbital of the electron configuration of the element Bromine (Br-35)
4p5
3d5
5s1
2p1
How many are the Neutrons of the element Tin ( 59119Sn )
59
69
119
None of These
Hydrogen is the first element formed in the universe?
TRUE
FALSE
The present day model of an atom was proposed by Michael Faraday.
TRUE
FALSE
The light elements were formed during the Big Bang Nucleosynthesis.
TRUE
FALSE
During the Stellar nucleosynthesis the elements from cobalt to uranium were formed.
TRUE
FALSE
The number of neutrons of in an atom of an element is equivalent to atomic number of the element.
TRUE
FALSE
How many are the protons of the element Molybdenum (4296 Mo)?
(a)
What element will be produce if the elements Curium (24796Cm) and Helium (42He) will undergo on a nucleosynthesis?
(write only the SYMBOL of the correct answer.)
(a)
