Atoms, Ions isotopes Sort PracticeComplete the empty boxes for each of the following

neutral atoms, ions and isotopes. O Mrs. Goy's Classroom 2019

Neutral # Protons

Atom,Average

Name SymbolIon or

# Electrons AtomicMass

IsotopeMass

Number

#Neutrons

12

24.305

MagnesiumIon 10 24

24.305

14.007

N3- 14

Nitrogen-15 14.007

NeutralMagnesium Atom 12 24

12

Mg2t 12or ion 24.305

Mgt2 1212

Magnesium -28 isotope 12 2816

Nitrogen N Namitha' t 147-

Nitrogen ion Fg 14.007ion

'IN isotope of 15

Atoms, Ions isotopes Sort PracticeComplete the empty boxes for each of the following

neutral atoms, ions and isotopes. O Mrs. Goy's Classroom 2019

Neutral # Protons

Atom,Average

Name SymbolIon or

# Electrons AtomicMass

IsotopeMass

Number

#Neutrons

12

24.305

MagnesiumIon 10 24

24.305

14.007

N3- 14

Nitrogen-15 14.007

⇐ Atomic#

Neutralmagnesium Atom 12 24

12

Mgt2 Ion12

24.30512

Magnesium -28 Isotope 122 2816

Nitrogen N'''automat 7 14

77-

Nitrogen ion 10 14.007ion

7-

'EN isotope of 15

Name: Period: Date

Worksheet: Atoms, Isotopes, and Ions

toms

The number of protons in an atom determines the identity of the atom. Atomic # # ProtonsIn a neutral atom, the number of positive protons equals the number of negative electrons. # Protons # ElectronsProtons and neutrons both have a mass of amu. The mass of the electron is negligible compared to the mass of the proton and neutron.Thus the mass number or the mass of the atom, is the sum of the number of protons and neutrons. Mass # = # Protons # Neutrons

Name Symbol Atomic #f Mass# # Protons # Neutrons # Electrons

Selenium 46

222 86

118 79

11 12

IsotopesThe number of neutrons in any specific type of atom can vary. Atoms of the same element with different numbers of neutrons are calledisotopes.Isotopes are distinguished from each other by including themass number with the name or symbol.

Name Symbol Atomic # Mass # # Protons # Neutrons # Electrons2351

Carbon-12

Carbon-13

Tons

As we have seen, in a neutral atom, the number of protons and the number of electrons is equal.Atoms can gain or lose electrons to become ions. Ions are charged atoms resulting from the difference in number of positive protons andnegative electrons.A cation IS a positive ion. A cation results when an atom loses electrons. # Protons> # Electrons

An anion is a negative ion. An anion results when an atom gains electrons. # Electrons # ProtonsIons are distinguished from atoms by including the ion charge as a superscript in the symbol.

Name Symbol Atomic # Mass# # Protons # Neutrons # Electrons Cation or

Anion?

14

Iron 56 24

ion

15 15 18

19

Sharp

Due Friday ,Jan 31st

(Neutral)*

=

-

(change in Neutrons)

(Change in electrons) ①= added electrons let⑦ =subtractede

-

Name: Period: Date

Worksheet: Atoms, Isotopes, and Ions

toms

The number of protons in an atom determines the identity of the atom. Atomic # # ProtonsIn a neutral atom, the number of positive protons equals the number of negative electrons. # Protons # ElectronsProtons and neutrons both have a mass of amu. The mass of the electron is negligible compared to the mass of the proton and neutron.Thus the mass number or the mass of the atom, is the sum of the number of protons and neutrons. Mass # = # Protons # Neutrons

Name Symbol Atomic #f Mass# # Protons # Neutrons # Electrons

Selenium 46

222 86

118 79

11 12

IsotopesThe number of neutrons in any specific type of atom can vary. Atoms of the same element with different numbers of neutrons are calledisotopes.Isotopes are distinguished from each other by including themass number with the name or symbol.

Name Symbol Atomic # Mass # # Protons # Neutrons # Electrons2351

Carbon-12

Carbon-13

Tons

As we have seen, in a neutral atom, the number of protons and the number of electrons is equal.Atoms can gain or lose electrons to become ions. Ions are charged atoms resulting from the difference in number of positive protons andnegative electrons.A cation IS a positive ion. A cation results when an atom loses electrons. # Protons> # Electrons

An anion is a negative ion. An anion results when an atom gains electrons. # Electrons # ProtonsIons are distinguished from atoms by including the ion charge as a superscript in the symbol.

Name Symbol Atomic # Mass# # Protons # Neutrons # Electrons Cation or

Anion?

14

Iron 56 24

ion

15 15 18

19

Sharp

Due Friday ,Jan 31st

*

=

-

(change in Neutrons)

(Change in electrons)

Thlngstorememb.ee① Atomic number C#)-

⇒ gives you the numberof protons Calwaigs)

- if the atomic number changes ,the element changes

For nisotopes, the atomic number is

the number of protons and number of electrons.

②Atomicity⇒ atomic mass = # of protons

'¥# of neutrons# of neutrons = atomic mass

- atomic#(minus)

ThingstorememberooAtomkhumb_er#8-gives you

the number of protons (always )- if the atomic # Changes , the element changes- gives you the number

of electrons in

neutral atoms and Isotopes (only)- -

Atomic mass-

AM = # of protons t # of neutronsLplus## of neutrons =

Atomic mass - Atomic#