Atoms
What is the function of atoms?
Atoms bond together to form molecules
How many atoms does H2 (Hydrogen gas) have?
Hydrogen gas has 2
true or false a protons is positive
true
Who left spaces on the Periodic Table so that unknown elements could be added?
Dmitri Mendeleev
What is element H?
Hydrogen
Describe an atom
How many atoms does Li4 have
It has 4
true or false electrons has a negative charge
that is true
When was the periodic table first organized by atomic mass?
1869
what is the element for Li
Lithium
Who first named and described atoms?
Democritus
how many atoms does O3 have?
it has 3
true or false neutrons possessing no net charge.
true
How many elements are a on periodic table?
there are 118 element on the periodic table
what is the elements for Ar
Argon
When was the atom first described?
450 B.C.
How many atoms does CO2 have?
it has 3
true or false people are made out of atoms
true people are made out of atoms
how many energy level are on the periodic table
there are seven energy level
Which element is Be?
Beryllium
When was the first atom used in a nuclear reaction?
on July 16,1945
How many atoms does C6H12O6 have?
It has 24
How many elements are there in the human body?
Hint: C H N O K Na
There are 6
Carbon, Nitrogen, Hydrogen, Oxygen, Sodium and Potassium
who was the first person to used the first periodic table
Dimitri Mendeleev
what is the elements for Ca
what is Calcium