What is the atomic number of iron
26
What is the electron configuration of Helium
1s2
Can oxygen have an isotope
Yes
This part of an atom is found in the nucleus and has a positive charge
Proton
How many electrons does oxygen have
8
What is the atomic number for oxygen
8
What element has this electron configuration
(Ar) 3d10 4s2 4p4
Selenium
What is the term for atoms of the same element that have different numbers of neutrons in thier nuclei?
Isotopes
This part of an atom that orbits the nucleus and has a negative charge
Electron
How many electrons does boron have
5
What is the atomic number of zinc
30
What element has this electron configuratoion
1s22s22p63s23p4
Sulfur
This term refers to the total number of protons and neutrons in the nucleus of an atom
Atomic Mass
This particle is neutral and found in the nucleus of an atom
Neutron
How many electrons does magnesium have
12
What is the atomic number of phosphorus
15
What is the electronic configuration of Calcium
1s22s22p63s23p64s2
Do all elements have isotopes
Yes
The smallest unit of chemical element that retains its chemical properties
Atom
How many electrons does potassium have
19
What is the atomic number of hydrogen
1
What element has this electron configuration
1s22s22p63s23p64s23d6
Iron
What element has the lowest atomic mass
Hydrogen
This is the center of the atom, containing protons and neutrons
Nucleus
How many electrons does barium have
56