periodic table
Protons, neutrons and electrons
equations
random
vocab
100
what is the atomic number?
1
100
What are the charges for protons, neutrons, and electron?
Proton=+
neutorns=0
Electrons=-
100
an atom has an atomic number of 9 and a mass number of 29, find the number of protons, neutrons and electrons.
protons=9
electrons=20
Neutrons=9
100
what is another name for groups?
families
100
a charged atom. an atom becomes an ion when it gains or loses electrons
ion
200
how do you find the mass number?
Add the protons and neutrons together.
200
how many valence electrons does oxygen have?
6
200
an atom has an atomic number of 13 and a mass number of 27, find the number of protons neutrons, and electrons.
protons=13
electrons=13
neutron=14
200
where does isotopes stability start?
Families
200
atoms of the same element with different numbers of neutrons is?
isotopes
300
where are metals generally located on the periodic table?
Right side
300
the bigger the atom the more_____ it takes to be stable?
Neutrons
300
an atom has 8 protons, 9 neutrons, and 8 electrons. what is the atomic number and mass
atomic number=8
mass number=17
300
what changes when an atom becomes an ion?
an atom becomes charged
300
the dance center of an atom made of positive protons and neutral neutrons
nucleus
400
How does the periodic table tell you how many electrons a neutral atom has?
The number of electrons equals the atomic number
400
what happens to the atomic number as you move left to right?
the atomic number increases.
400
an atm has 15 protons, 16 neutrons and 15 electrons. what are its atomic number and mass.
atomic number=15, mass number=31
400
where are metalloids located?
along the zigzag/stair case line on the periodic table.
400
electrons in the outermost energy level. they affect bonding behavior and reactivity.
valence electrons
500
what information can be included not eh periodic table?
state of matter, group name, classification and electron per shell.
500
how dies the periodic table tell you how many electrons a neutral atom has?
the number of electrons equals the atomic number.
500
an atom has 12 protons, 13 neutrons, and 12 electrons. what are its atomic number and mass number?
atomic number=12
mass number=25
500
an element is located on the stair-step line what type of element is it likely to be?
Metalloids
500
a neutral atom has the same number of protons and electrons.
Neutral atom