WorksheetsATOMS
Total questions: 20
Worksheet time: 19mins
All matter is made of what
energy
atoms
electrons
compounds
The positive particles of an atom are
electrons
positrons
neutrons
protons
The central region of an atom where its neutrons and protons are is its
nucleus
electron cloud
core
center
An atom with atomic number 6 would have how many protons
6
12
3
cannot be determined
Particles in an atom that are neutral and have no charge are
negatrons
electrons
neutrons
protons
True or False: Neutrons have a negative charge
True
False
What is the atomic number for an element with 3 protons?
2
1
3
6
A particle that moves around the nucleus is a(n)...
Proton
Neutron
Electron
Quark
In the modern periodic table, elements are arranged by:
atomic mass
atomic number
valence electrons
number of isotopes
What does the 1.00794 stand for?
Hydrogen
atomic number
atomic mass
atomic explosion
What subatomic particles would you find in the nucleus of an atom?
Protons only
Protons and Neutrons
Neutrons and Electrons
Protons and Electrons
If an atom has 10 protons, 10 neutrons, and 10 electrons, what is the mass of the atom?
10
20
30
What subatomic particle(s) would be found orbiting the nucleus?
Neutrons only
Electrons only
Protons and Neutrons
Protons and Electrons
Protons and electrons balance the charge of an atom.
True
False
True/False: Compounds are made of two or more different elements.
True
False
What particle uniquely identifies an element?
Number of Valence Electrons
Number of Protons
Number of Electrons
Atomic Mass
Most of the mass in an atom is concentrated in the...
electrons
nucleus
protons
empty space
Electrons are___________
Extremely small even in comparison to protons.
part of the nuclues.
Super Positive, like cheerleaders!
very large
Anything that has mass and takes up space is called
heterogeneous
homogeneous
matter
density
An atoms overall charge is
positive
depends on its mood
neutral
negative
