WorksheetsAtomic Structure and the Periodic Table
Total questions: 25
Worksheet time: 19mins
How do you find out how many neutrons an element has?
Subtract the protons from neutrons
Subtract the number of neutrons from the atomic mass
Add the protons to the neutrons
Subtract the number of protons from the atomic mass
The element symbol for Oxygen is:
Ox
O
Oxygen
O+
The element symbol for Krypton is
Kr
K
Kt
Kn
Aluminum (Al) has an atomic number of 13, and an atomic mass of 27. How many protons, electrons, and neutrons does it have?
protons
13
neutrons
14
electrons
13
NItrogen ( has an atomic number of 7 and an atomic mass of 14. How many protons, neutrons, and electrons does it have?
protons
7
neutrons
7
electrons
7
Neon (Ne) has an atomic number of 10 and an atomic mass of 20. How many neutrons does it have?
11
10
12
9
Which Bohr model accurately illustrates Sulfur (S)?
Which Bohr model accurately illustrates Magnesium (Mg)?
How many valence electrons does Phosphorus (P) have?
4
7
5
1
How many valence electrons does Barium (Ba) have?
1
2
6
8
Haw many valence electrons does Selenium (Se) have?
3
4
6
7
The (a) are located in group (b) and have 8 (c) , except for (d) , which only has (e) .
The first shell of a Bohr model holds (a) electrons, the second shell holds (b) electrons and the third shell holds (c) .
The three subatomic particles in an atom are the:
proton, voltron, and electron
proton, neutron, and spectrum
proton, neutron and electron
spectrum, electrum, and neutron
The (a) and (b) are located in the (c) of an atom, and make up all of the mass, while the (d) orbit around the center of the atom.
The electrons in the outer shell of a Bohr model are called:
valiant spectrums
salient protons
mass spectrometers
valence electrons
True or False: the group that an element is in on the periodic table tells how many valence electrons the element has.
True
False
(a) represent the second most number of elements, are made up of mostly gasses, and are poor conductors of heat and electricity at room temperature.
The (a) have both properties of metals and non-metals.
Most of the elements are (a) , which are mostly solid at room temperature, and are good conductors of heat and electricity.
Lead (Pb), Nickel (Ni), and Gold (Au) are all examples of:
Noble Gasses
Metalloids
Metals
Non-metals
Hydrogen (H), Chlorine (Cl), and Oxygen (O) are all examples of:
Noble Gasses
Metalloids
Metals
Non-metals
Boron (B), Silicon (Si), and Arsenic (As) are all examples of:
Noble Gasses
Metalloids
Metals
Non-metals
Neon (Ne), Krypton (Kr), and Helium (He) are all examples of:
Noble Gasses
Metalloids
Metals
Non-metals
Bromine (Br) has an atomic number of 35 and an atomic mass of 80. How many neutrons does it have?
35
80
45
115
