Which group (name) is the most stable?
the noble gases
How many protons, neutron and electrons? (p+,n,e-)
9,10,10
Identify the # of each subatomic particle of Boron-11 with an +3 ion. (p,n,e)
5,6,2
protium, deuterium, & tritium are al isotopes of which element?
Hydrogen
How many protons, neutrons, & electrons are there in an atom of potassium-40 with a 1+ charge?
19,21,18
Proton, neutrons, & electrons in a uranium-240 atom?
92,148,92
How many neutrons does Astatine-211 have?
126
Which halogen is a solid at room temperature?
iodine
How many protons, neutron and electrons? (p+,n,e-)
4,5,2
Which property is described by an element's atom's ability to attract electrons?
electronegativity
How many valence electrons do the transition metals usually have?
2 valence electrons
How many neutrons are in the most common isotope of gold?
118
name a transition metal in period 6 that in the same group as vanadium
tantalum
How many protons, neutron and electrons? (p+,n,e-)
5,6,2
name of this atom?
lithium-7 with a 1+ charge
How many neutrons are in iron-57?
31
Write the nuclide symbol of an atomic that has 17 protons, 18 neutrons, 18 electrons
35 Cl 1-
What element has 0 neutrons in its most common isotope?
Hydrogen
What is wrong with this diagram?
Helium will never have an octet. Stable 1st energy level
Is an anion smaller or larger than a neutral atom?
Larger
Which Element is the most electronegative,
tungsten, strontium, antimony, or tin?
antimony
Which is the most electronegative element?
fluorine
Which group is the least electronegative (name)?
noble gases
Element that is a diatomic gas that typically forms 3 bonds and has a lone pair of electrons
nitrogen
Name the element in the second period that is a halogen
fluorine
How many electron energy levels does a neutral magnesium atom have?
3
How many neutrons are in silver-107 & silver-109?
60,62
How many liquid elements are in the periodic table?
2
Which of the noble gases is slightly electronegative and will form compounds?
Xenon
How many electron energy levels does a magnesium cation atom have?
2
How many neutrons are in neon-21?
11
If one proton was fused into a beryllium-10 nucleus... What would be the product?
boron-10
Which element has the smallest atomic radius?
Helium
Of the three types of elements, which will most like form cations?
metals
Which element in period 5 is a noble gas?
Xenon
Which element in period 3 has 6 valence electrons?
sulfur
Name the halogen in period 6
astatine