physics: chapter 2- atom
if an atom had 6 protons and 5 electrons, what would its net charge be? a- positive b- negative c- balanced
positive
what is the max number of electrons that will occupy the M shell
18
which period number has the highest ionization energy? a-2 b-3 c-4 d-5
2
what is the max number of electrons that can occupy the P shell?
72
what is the max number of electrons in the N shell if it is the outermost shell of an atom?
8
which of the following have the same number of neutrons? a- isotopes b- isobars c- isotones d- isomers
isotones
which of the following has the same number of protons? a- isotopes b- isobars c- isotones d- isomers
isotopes
how many unique types of atoms make up an element?
1
the dense center of the atom is made up of which of the following: 1- protons 2- neutrons 3-electrons
1&2
which of the following must balance in terms of number of each to give an atom a neutral charge? 1- protons 2- electrons 3- neutrons
1&2
which shell is closest to the nucleus? M N O P
M
which shell is furthest from the nucleus? a- K b- L c- M d- N
N
which of the following has the same atomic mass number? a- isotope b- isobar c- isotone d- isomer
isobar
which of the following has the same number of protons and neutrons but different amounts of energy?
isomer
what is the force that keeps electrons in orbit?
binding energy
who likened the atom of our solar system
bohr
what happens to binding energy as distance between particle increases?
decreases
the force of attraction in an ionic bond is caused by which of the following?
difference in charge
what holds atoms together in an ionic bond?
difference in charge
in an ionic bond, what particle is given up or received?
electron
which of the following provides the negative charges of an atom
electron
what do atoms share in a covalent bond?
electrons
what is exchanged in an ionic bond? a- nucleus b- neutrons c-protons d-electrons
electrons
which particle is the smallest in terms of mass
electrons
what limits the number of electrons that can fill a shell?
electrons repel each other
which of the following is the simplest form of a substance that composes matter? a- atom b- compound c- element d- electron
element
it is important to keep in mind that the atom is mostly made up of:
empty space
what changes in isomers? a-protons b- electrons c- neutrons d- energy
energy
the use of the word atoms is first attributed to:
greeks
what is the purpose of binding energy?
hold protons and neutrons together
all that we know about the atom is based on:
indirect observation
if an atom has more negative charges than positive charges it is said to be a:
negative ion
which particle has no charge?
neutron
which particle is the largest in terms of mass?
neutron
what stays the same in isotones?
neutrons
atoms in each period of the periodic table share what characteristic in common? a-number of protons b-number of electrons c- number of neutrons d- number of electron shells
number of electron shells
what are the groups of the periodic table organized by?
number of electrons in the outer most shell
electron shells refer to:
orbit of the electron
electron shells refer to:
orbits of the electrons
what stays the same in isotopes?
protons
what force must binding energy overcome in the nucleus?
protons repelling each other
who helped establish the organization of the atom through experimentation with alpha particles?
rutherford
what holds atoms together in a covalent bond?
shared electrons
what do zinc, iron, nickel, and oxygen have in common?
they are elements that exist in pure form
the element that does not fix exactly into one of the groups re called:
transitional metals