Atomic structure & the periodic table-1
''An atom is the smallest part of an element that can exist on its own.''
True or False?
True
If an atom has an atomic number of 19 and a mass number of 39, then how many electrons has it got orbiting around its nucleus?
19
If an element has an atomic number of 7 and a mass number of 14, what is the name of this element?
a. Silicon
b. Lithium
c. Neon
d. Nitrogen
d
What Freezes Faster, Cold Water or Hot Water?
Hot Water
What is group I on the periodic tabled called?
Alkali metals
What is the 49th element in the periodic table?
Indium
Which statement best describes an electron?
a. Smaller mass than a proton and a negative charge
b. Smaller mass than a proton and a positive charge
c. Greater mass than a proton and a negative charge
d. Greater mass than a proton and a positive charge
a
What is The only letter that is not in the Periodic Table?
J
What is The Most Radioactive Element?
Polonium
What is the element that has 0 neutrons in its nucleus?
Hydrogen
For an atom to be electrically neutral, it must contain the same number of _____?
a.protons and neutrons
b.neutrons and electrons
C
What makes a compound inorganic?
It does not contain Carbon and Hydrogen.
What is the Heaviest Element In the Periodic Table?
Uranium
How many neutrons does the element of atomic number 1 and mass number 1 have?
0
How much Melinum do we have in our bodies?
None, It's Not an element