Element Symbols
H
hydrogen
What is the charge of a proton?
positive
What is a row of the periodic table called?
a period
What is the first element of the periodic table?
Hydrogen
What does the atomic number represent?
# of protons
These molecules are made up of the same type of atoms.
Elements
Mg
magnesium
What is the charge of an neutron?
it has no charge
What is a column of the periodic table called?
a group
Elements on the top right area of the periodic table are called...?
Non-metals (will accept Noble gases)
These molecules are made up different types of atoms.
Compounds
Cl
chlorine
What is the negative particle that orbits the nucleus of an atom?
electron
How many periods are there on the periodic table?
7
Which element is more reactive? Francium (Fr) or Sodium (Na)
Francium (Fr)
What four things are included in an element's square?
atomic number, atomic mass, symbol and element name
Is H2O2 an atom, element, compound or mixture?
Compound
P
phosphorus
What particles are in the nucleus of an atom?
protons and neutrons
How many groups are on the periodic table?
18
Which element is heavier (by atomic mass): lithium or oxygen?
Oxygen
What is the atomic number, atomic mass and symbol for gold?
Atomic # is 79 Atomic mass is 196.967 or 197 Symbol is Au
Is C6H12O6 an atom, element, compound or mixture?
Compound (glucose)
K
potassium
Why is an atom neutral?
because it has the same number of protons and electrons
How is the periodic table arranged?
by atomic number
Without looking at your periodic table, name the element located in Group 2, Period 2.
Beryllium
The mass number is made up of
neutrons + protons.
Any two or more atoms bonded together are known as a...
molecule