How do you calculate the atomic mass?

Add the protons and neutrons of an atom

Where are metals found on the periodic table

On the left side and in the middle

What does the Atomic Number tell us

the amount of protons and electrons (when neutral)

Atoms of the same element that have different # of NEUTRONS

What are negative ions?

Negative ions are atoms that gained an electron

What are positive ions?

positive ions are atoms that lost an electron

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Periodic Table WDMS

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Questions 17

Answers

1
Which best describes elements that have similar chemical properties?
All of the above
In a row
In a Group
In a Period
2
Where are valence electrons located?
middle electron shell
outer most electron shell
first electron shell
In the nucleus
3
How do you calculate the atomic mass?
Add the electrons and neutrons of an atom
Add the electrons and protons of an aatom
It's equal to the just the number of protons
Add the protons and neutrons of an atom
4
The vertical columns of the periodic table are called
periods
columns
rows
groups/families
5
Where are metals found on the periodic table
In the middle only
On the right side only
On the left side and in the middle
On the left side only
6
What does the Atomic Number tell us
the amount of protons and electrons (when neutral)
protons + neutrons
the amount of just neutrons
the amount of just electrons
7
Atoms become ions by ___
gaining or losing protons
gaining or losing electrons
gaining or losing neutrons
nuclear reactions
8
How many valence electrons does Group 17 (Halogens) have?
5
7
8
2
9
Where are the metalloids located on the Periodic Table?
Left side of the table
Along the staircase
Right side of the table
Middle of the Table
10
The current periodic table is organized by....
Molecules
Chemical Symbol
atomic number
number of neutrons
11
Which is the Atomic Mass?
28
24
Cr
51.9961
12
Isotopes of the same element vary in their number of...
Electrons
All Particles
Neutrons
Protons
13
What are isotopes?
Atoms of different elements that have different # of NEUTRONS
Atoms of the same element that have different # of PROTONS
Atoms of the same element that have different # of NEUTRONS
Atoms of different elements that have same # of NEUTRONS
14
What are negative ions?
Negative ions are atoms that lost or gained an electron
Negative ions are atoms that lost an electron
ions are atoms that haven't lost or gained an electron?
Negative ions are atoms that gained an electron
15
What are positive ions?
positive ions are atoms that lost an electron
Ions are atoms that haven't lost or gained an electron?
positive ions are atoms that lost or gained an electron
positive ions are atoms that gained an electron
16
A row on the Periodic Table is called a ________.
column
group
period
family
17
How many Valence Electrons does Group 1 (Alkali Metals) have?
One
Three
Four
Two

Periodic Table WDMS Flashcards | StudBud