Font size
WorksheetsSuperación science 7mo
Total questions: 21
Worksheet time: 16mins
What are the three main parts of an atom?
Protons, neutrons, electrons
Atoms, cells, molecules
Protons, cells, tissues
Neutrons, tissues, cells
Where are protons found?
In the electron cloud
In the nucleus
Outside the atom
In the cell wall
What is the charge of a neutron?
Positive
Negative
Neutral
It changes
What is the charge of an electron?
Positive
Negative
Neutral
Strong
What does the atomic number tell you? (Select two options)
Number of atoms
Number of electrons
Number of protons
Number of neutrons
How do you find the number of neutrons?
Atomic number - atomic mass
Atomic mass - atomic number
Number of electrons - protons
Atomic number + protons
Where are electrons located?
In the nucleus
On the periodic table
In the electron cloud
Next to protons
What is the periodic table?
A table for science tools
A chart of elements
A chart of cells
A timetable
What do elements in the same group (column) have in common?
Same number of neutrons
Same color
Similar properties
Same size
Which information is found in each element box?
Number of neutrons
Mass and atomic number
Cell size
Energy level
What is the symbol for Oxygen?
Ox
Og
O
Oy
Rows in the Periodic Table are called
Periods
Groups/Families
Cousins
Metals
Column in the Periodic Table are called
Periods
Groups/Families
Cousins
Metals
The chemical symbol in this element box is
26
Fe
Iron
55.845
Find the element on Period 3 and Group 17. What is
this element’s chemical symbol?
F
Br
Cl
I
How many periods are there in the periodic table?
7
9
10
18
Who arranged the periodic table of elements by the atomic mass (or mass number)?
Democritus
John Dalton
Henry Moseley
Dmitri Mendeleev
This element does not match the properties of any other group so it stands alone. It is placed above Group 1 but it is not part of that group. It is very reactive, colorless, odorless, and a gas at room temperature.
Hydrogen
Helium
Nitrogen
Oxygen
Use the periodic table to find the number of protons, neutrons, and electrons for the element Carbon (C).
Write them below:
Protons: _____
Electrons: _____
Neutrons: _____
Draw a simple model of a Nitrogen atom. Label the energy levels, quantity of electrons, protons and neutrons. (two energy levels)
What is the electronic configuration of rubidium?
(a)
