Atomic Structure
What is the meaning of the word atom?
What is : not about to be divided
Neutron is _______ charged
What is : uncharged/ neutral
A carbon atom with 6 protons, 6 electrons and 6 neutrons would have a mass number of?
What is : 12
what two particles make up an atom's nucleus?
What is : protons and neutrons
How many atoms of carbon are in CaCO3?
1
The positively charged particle
What is : A proton
electrons are _____ charged
negatively
If hydrogen 1 has 1 proton, how many protons does hydrogen 2 have?
What is : 2
How does the mass of an electron compare to the mass of protons and neutrons?
What is : It is much smaller
How many atoms of hydrogen are in C12H22O11?
22
The smallest unit of an element that can exist either alone or in combination with other such particles of the same or different elements is the _____
What is : atom
The current atomic theory includes the ________ model
What is : Bohr
Chlorine has atomic number 17 and mass number 35. How many neutrons are in it's nucleus?
What is : 18 neutrons
What element has the atomic number 30?
Zinc
How many atoms are in the molecule 4(MgCO3)?
20
In an atom, which has the least mass? A: nucleus B: proton C: neutron D: electron
What is : electron
The sum of protons and neutrons in the nucleus.
What is : atomic mass
This element has the symbol Hg
What is Mercury?
A substance that is made up of only one kind of atom is a(an)
What is : element
How many atoms of H and O are in the molecule 4Cu2(OH)2CO3?
H=16
O=12
What do we use to determine the number of protons plus the number of neutrons in the nucleus of an atom?
What is : The atomic mass
An atom is electrically neutral because
What is :the numbers of protons and electrons are equal.
The atomic number of Tungsten
What is : 74
What is the symbol for aluminum
What is: Al
How many atoms in total are in the molecule (C9H8O4)2?
42