1 Daily Question The material that makes up all matter which cannot be broken down into other substances is called an a) compound b) mixture c) element d)

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Presentation transcript:

1 Daily Question The material that makes up all matter which cannot be broken down into other substances is called an a) compound b) mixture c) element d) solution

2 Daily Question All elements are composed of extremely small particles called a) compounds b) atoms c) mixtures d) molecules

3 Daily Question According to Dalton’s theory of atoms, all atoms in any one element a) are exactly alike b) can be broken into smaller pieces c) are different d) have a different mass

4 Daily Question The atom is made up of a) protons and neutrons b) protons and electrons c) protons, neutrons, and electrons d) protons, neons, and electrons

5 Daily Question Which part(s) of the atom move around the nucleus? a) protons b) electrons c) neutrons d) all the above

6 Daily Question The center part of the atom is called the nucleus, which contains the a) protons b) electrons c) neutrons d) a and c

Daily Question 7 Which subatomic particle below has a mass of 1 amu? a) proton b) electron c) neutron d) a and c

8 Daily Question What is responsible for keeping the nucleus of an atom together? a) valence electrons b) nuclear force c) positive protons d) none

9 Daily Question What is the maximum number of electrons that can be held in the second shell of an atom? a) 2 b) 6 c) 8 d) 10

10 Daily Question A fluorine atom that is neutral has nine electrons. How many valence electrons does a fluorine atom have? a) 2 b) 7 c) 8 d) 9

11 Chemistry Humor A neutron goes into a restaurant and asks the waiter, “How much for a soda?”

Chemistry Humor The waiter replies, “For you, no charge.” Based on your knowledge of atomic structure, why could this be humorous?

12 Daily Question What piece or pieces of information are needed to do a Lewis dot diagram? a) electrons b) symbol c) valence electrons d) b and c

13 Daily Question The atomic number is the number of in the nucleus. a) ions b) electrons c) neutrons d) protons

14 Daily Question Identify the atom which has 28 protons in the nucleus. a) Nitrogen b) Nickel c) Neon d) Niobium

15 Daily Question Identify the atom below. Helium b) Lithium c) Carbon d) Boron

16 Daily Question How many neutrons does a Chromium atom have? a) 52 b) 24 c) 28 d) 20

17 Daily Question All Fluorine atoms will have a) 9 electrons b) 9 protons c) 19 neutrons d) 10 neutrons

18 Daily Question Carbon 12 and Carbon 14 are isotopes of one another because they have a(n) a) equal number of electrons b) equal number of protons, different number of neutrons c) different number of electrons d) different number of protons, equal number of neutrons

19 Daily Question A neutral calcium atom loses two of its electrons to become more stable. What is the charge of the new calcium ion? a) – 2 b) 0 c) + 2 d) + 1

20 Daily Question A chemist found the following results after studying a particular atom. She found that the atom had 7 protons, 8 neutrons and 7 electrons. What is the best identification of the atom? a) standard nitrogen b) nitrogen ion c) isotope of nitrogen d) oxygen atom

Daily Question 21 Predict the charge on a phosphorus ion. a) +1 b) +3 c) -1 d) -3

Daily Question 22 The dots on a Lewis dot structure represent a) valence electrons b) all electrons c) outer electrons d) a and c