Atoms
The center of an Atom is called the what?
What is the nucleus
Neutron is _______ charged
What is : uncharged/ neutral
How are the atoms arranged on the periodic table?
What is in order of increasing atomic number
what two particles make up an atom's nucleus?
What is : protons and neutrons
The atomic mass of Molybdenum
What is 95.94
electrons, protons and neutrons have what charge, and where are they found
What is : negatively, positive and neutral electrons are found in orbital, protons and neutrons found in nucleus.
What do the period numbers tell you about an atom?
How many electron shells an element has
How does the mass of an electron compare to the mass of protons and neutrons?
What is : It is much smaller
the atomic number of Uranium
92
What is matter
anything that has weight and occupy space
The sum of protons and neutrons is called
What is : Mass Number or Atomic Mass
What do the group numbers tell you about an atom?
How many electrons are on the outermost level
The atomic mass is _______ + ________?
number of protons + number of neutrons
The number of neutrons in Nitrogen's most common isotope
7
smallest piece of matter that still has the properties of an element.
What is : an atom
What is: the atomic number, number of protons, and number of electrons of Mg on the periodic table.
12, 12, 12
It has one less proton than magnesium
What is sodium
What is the Atomic Number of Helium?
What is 2
what is an isotope?
What is : An atoms of an element that has the same number of protons but different numbers of neutrons.
how many elements are on the periodic table
what is 110
It has two less protons than beryllium
What is helium
Carbon has how many Protons?
What is 6