2. Atoms & Elements
Subatomic Particles
2. Atoms & Elements
Subatomic Particles - Video Tutorials & Practice Problems
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The atom is composed of 3 subatomic particles:neutrons, protons, and electrons.
The Atom & Subatomic Particles
In terms of size, neutrons are the largest, protons are slightly smaller, and the electrons are the smallest.
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concept
Subatomic Particles
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example
Subatomic Particles Example 1
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Problem
ProblemAccording to the table above, how many electrons are required to produce a charge of –2.0 C?
A
1.3 × 1019 electrons
B
2.0 × 1019 electrons
C
4.2 × 1020 electrons
D
8.5 × 1020 electrons
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Problem
ProblemIf the charge and mass of one proton is 1.60218 x 10-19 C and 1.673 x 10-24 g respectively, what is the charge of 378 kg of protons?
A
5.24 × 1013 C
B
9.07 × 1014 C
C
4.11 × 1015 C
D
3.62 × 1010 C
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PRACTICE PROBLEMS AND ACTIVITIES (80)
- How many protons, neutrons, and electrons are present in an atom of 2 206Pb? (LO 2.14) (a) 82 protons, 206 neu...
- Determine whether each of the following statements is true or false. If false, correct the statement to make i...
- Determine whether each of the following statements is true or false. If false, correct the statement to make i...
- Determine whether each of the following statements is true or false. If false, correct the statement to make ...
- Consider an atom of 32P. (c) What is the symbol of the atom obtained by adding one neutron to 32P?
- Consider an atom of 32P. (b) What is the symbol of the atom obtained by adding one proton to 32P?
- Consider an atom of 32P. (a) How many protons, neutrons, and electrons does this atom contain?
- Consider an atom of 58Ni. (a) How many protons, neutrons, and electrons does this atom contain?
- (b) Which of these can vary without changing the identity of the element?
- (a) Define atomic number and mass number.
- How many protons, neutrons, and electrons are in the following atoms? (e) 239U
- How many protons, neutrons, and electrons are in the following atoms? (d) 55Mn
- How many protons, neutrons, and electrons are in the following atoms? (c) 59Co
- Fill in the gaps in the following table, assuming each column represents a neutral atom. Symbol 159Tb Protons...
- Fill in the gaps in the following table, assuming each column represents a neutral atom. Symbol 159Tb Protons...
- Fill in the gaps in the following table, assuming each column represents a neutral atom. Symbol 159Tb Protons...
- Fill in the gaps in the following table, assuming each column represents a neutral atom. Symbol 89Y Protons 78...
- Fill in the gaps in the following table, assuming each column represents a neutral atom. Symbol 89Y Protons 78...
- Fill in the gaps in the following table, assuming each column represents a neutral atom. Symbol 89Y Protons 7...
- Which of the following three drawings represents a neutral Na atom? (a) (b) (c)
- On a dry day, your body can accumulate static charge from walking across a carpet or from brushing your hair. ...
- Which statements about subatomic particles are true? a. If an atom has an equal number of protons and electro...
- Which statements about subatomic particles are false? a. Protons and electrons have charges of the same magnit...
- How many electrons does it take to equal the mass of a proton?
- A helium nucleus has two protons and two neutrons. How many electrons does it take to equal the mass of a heli...
- Identify the element represented by each of the following symbols and give the number of protons and neutrons ...
- Identify the element represented by each of the following symbols and give the number of protons and neutrons ...
- What is the difference between an atom's atomic number and its mass number?
- Identify the following elements: (a)
- Rounded to the nearest whole number, how many protons are in an atom of krypton?
- Oxygen has an atomic number of 8. What can you conclude from this fact?
- On the periodic table, gold has the atomic number 79. This means that
- How many neutrons are in an atom of copper? Round your answer to the nearest whole number.
- An atom of the isotope 133Cs contains how many protons (p), neutrons (n), and electrons (e)?
- An aluminum isotope consists of 13 protons, 13 electrons, and 14 neutrons. Its mass number is ____.
- The mass number of an atom is 15 and its atomic number is 7. the atom probably has...
- What is the atomic mass of an atom that has 6 protons, 6 neutrons, and 6 electrons?
- Using the periodic table, complete the table to describe each atom. Type in your answers.
- Consider the following table showing symbols, the number of protons, electrons, and neutrons, and the mass num...
- Mercury is in the 80th position in the periodic table. how many protons does it have?
- Which subatomic particles contribute to an atom's mass number but not its atomic number?
- What type of atomic particles will you find inside of the nucleus of an atom?
- What is the mass number of a potassium (K) atom that has 20 neutrons?
- If an atom has 35 protons in the nucleus, how many electrons will it have orbiting the nucleus?
- What is the atomic number of an atom that has 6 protons, 6 neutrons, and 6 electrons?
- Which of the following statements about subatomic particles is correct?
- Which of the following descriptions of a subatomic particle is correct?
- Which one of the following statements about atoms and subatomic particles is correct?
- Which of the following statement about subatomic particles is correct
- Which of the following statements about subatomic particles is true?
- What elements do q r and x represent
- How many protons, neutrons, and electrons are there in a neutral atom of 43k (potassium-43)?
- Rounded to the nearest whole number, how many electrons are in an atom of zirconium?
- How many protons and neutrons does a nucleus designated as 4018X contain?
- An atom's mass number is 13 and its atomic number is 6. How many neutrons are in its nucleus?
- How many protons, neutrons, and electrons are there in a neutral atom of 97Tc (Technetium-97)?
- What is the atomic symbol and mass number for an atom containing 50 protons and 64 neutrons?
- Carbon has an atomic number of 6. What can you conclude about carbon from this fact?
- Rounded to the nearest whole number, how many neutrons, on average, are in an atom of osmium?
- Which term is defined as the sum of protons and neutrons in an atom?
- In an electrically neutral atom the number of protons in the nucleus is equal to the number of?
- The sum of the number of protons and neutrons in the nucleus of an atom is called the
- Sodium's atomic number is 11. What does this tell you about an atom of sodium?
- In which of these cases do we have enough information to say that the atom is electrically neutral?
- The atomic number of krypton (Kr) is 36, and its mass number is 84. How many neutrons does it have?
- The center of an atom is a dense region consisting of protons and neutrons called the
- Which subatomic particle plays the greatest part in determining the properties of an element?
- What is the mass number of a cobalt atom that has 27 protons and 30 neutrons?
- Rounded to the nearest whole number, how many protons are in an atom of krypton? 36 48 84 120
- Match each property to the appropriate subatomic particle. Drag each property into the correct bin.
- An uncharged atom has six electrons. the nucleus of this atom must contain _______ protons.
- Rounded to the nearest whole number, how many protons are in an atom of Krypton? 36 48 84 120
- How many protons, neutrons, and electrons are there in a neutral atom of 30P (phosphorus-30)?
- An uncharged atom has six electrons. The nucleus of this atom must contain _______ protons.
- For Al, its atomic number is 13 and its mass number is 27. How many neutrons does it have?
- If an atom contains 3 protons, 4 neutrons, and 3 electrons, its mass number is
- All atoms of an element have the same number of ________.
- What is the atomic mass number of carbon-13 (6 protons, 7 neutrons, 6 electrons)?
- What is the mass number for an atom of barium containing 56 protons and 82 neutrons?
- Which of the choices is the unique, defining property of atoms of a particular element?