Lab Safety/ General Chem
What you should do when you spill acid on your hands ( 2 answers).
Rinse with just water and tell teacher.
What particles are found in the nucleus?
Protons and neutrons
What is the oxidation number ( charge ) of calcium?
+ 2
What type of elements are in group 1 and 2?
metals
Name : CO
carbon monoxide
What is the correct scientific notation for : 2,300, 000
2.3 x 106
What subatomic particle gives the element its identity?
Protons
How many p+, n0, e- in : 18O
8p, 10n , 8e
What is the name for the section groups 3 - 15?
transition metals
Name: Sr3(PO4)2
strontium phosphate
What is the correct scientific notation for : 0.000034
3.4 x 10-5
How do you find the number of neutrons in an atom?
mass number - atomic number
The amu of an atom is the average mass of what ?
different ISOTOPES in the element
What type of elements have both metal and nonmetal properties?
metalliods
What type of bond has low melting and boiling points, and nonconductive as a solid and solution?
covalent
What is the SI unit of measurement for length?
meters (m)
Which part of the atom is responsible for bonding?
Valance electrons
The isotopes 13N, 14N and 15N all have the same number of _____ but different number of ______.
protons, neutrons
What is electronegativity, and what is the most electronegative element?
ability to attract and electron in a bond, F
Name : CuSO4
copper (II) sulfate
Who is Ms. Keanes' favorite student?
The one that comes in, does their work, and doesn't talk excessively.
What is the charge and mass of a neutron and where is it found?
1 amu, 0 charge, found in the nucleus
What atom radius is bigger : S or P ?
P
Who is the Father of the Modern Periodic Table?
Mendeleev
What are the 3 types of bonds, and describe how they bond and with which types of elements (metal or nonmetal) .
Ionic / transfer e- / metal and nonmetal
Covalent / share e- / nonmetal
Metallic / "sea of electrons" / metals