1. The smallest chemical unit of matter is atoms because it is the most small unit which have the same properties as matter.
2.a molecule will have the largest size because a molecule is consist of more than one atom.
3. Neutrons in number because they all have same proton number because they are same atom they also have same electron as thy are neutral . That differ in mass number that only be possible when neutrons number is different.
4. Atomic number is represented by the number of proton present in nucleus.
5. Element is called when same atomic number will be present.
The smallest chemical units of matter are atoms b) molecules c) protons d) neutrons e) electrons...
Are the basic units of matter: a) Elements b) Atoms c) Electrons d) Protons e) Neutrons Has a negative charge: a) Elements b) Atoms c) Electrons d) Protons e) Neutrons Whether an atom will interact with other atoms depends on how many electrons it has. a) True b) False How many electrons are in the second orbital of an atom? a) 2 b) 6 c) 8 d) 4 e) 10 How many Hydrogen atoms does a water molecule have? a)...
65) The nucleus of an atom contains: a) protons and electrons b) just electrons c) electrons and neutrons d) protons and neutrons e) neutrons 66) The atomic number of an atom is: a) the number of electrons it has b) the number of neutrons it has c) the number of protons it has d) the number of protons plus the number of neutrons it has e) the combined total of protons, neutrons and electrons that it has 67) In water,...
The primary mineral in bone is A. sodium. B. oxygen. C. calcium. D. potassium. E. iron. 26. Ligaments attach A. muscle to muscle. B. bone to bone. C. muscle to bone. D. nerve to bone. E. nerve to muscle. 27. The mass number of an atom is the number of A. protons in the atom. B. neutrons in the atom. C. protons and electrons in the atom D. electrons and neutrons in the atom. E. neutrons and protons in the...
1. Protons share the dense nucleus with a. nucleus b. molecules c. electrons d. atoms ______2. Electrons are a. sub-atomic particles with a +1 charge b. equal to the number of protons in a nucleus c. said to be charmed d. sub-atomic particles with a +2 charge ____3. The force that binds 2 or more atoms together is known as a. a chemical bond b. valence c. joules d. electromagnetsm ______4. A molecular formula a. gives the total number of...
1. An atom of Indium-112 contains 49 protons, 63 neutrons, 49 electrons. b. 49 protons, 49 neutrons, 49 electrons. c. 49 protons, 49 alpha particles d. 49 protons, 63 neutrons. 2. Which of the following atomic symbols is incorrect? d. 3. How many atoms of hydrogen are present in 6.43 g of NH? a. 2.27 x 10 b. 1.28 x 10 1.16x 10 d. 6.82 10 4. A 2.55 ml sample of ethylene glycol antifreeze) has a mass of 2.83...
..ll T-Mobile 2:05 PM 29% 12) of the four elements most prevalent in living organisms, which element makes up the highest percentage? A) sulfur B) sodium C) oxygen D) potassium E) carbon 13) An atom of an element has atomic number of 6 and mass number of 14. From this information, we can determine that the nucleus has : A) 6 protons. B) 8 electrons. C) 8 neutrons. D) 6 protons and 8 electrons. E) 6 protons and 8 neutrons....
1. What do atoms contain? A) negatively charged neutrons and positively charged nucleus B) negatively charged electrons and neutral nucleus C) negatively charged electrons and positively charged nucleus D) positively charged electrons and negatively charged nucleus 2. What particles make up the nucleus? A) protons B) neutrons C) protons and electrons D) protons and neutrons E) electrons and neutrons 3. Atoms contain A) neutrons B) electrons C) electrons and neutrons D) electrons, protons, and neutrons E) protons D 4. Which...
E. electrons are shared between two atoms. 49. Molecules that form when electrons are shared unequally between atoms are called A. salt molecules. B. polar molecules. C. nonpolar molecules. D. lopsided molecules. 50. An atom has an atomic number of 19 and a mass number of 39. This atom will have A. 19 neutrons. B. 20 neutrons. C. 39 neutrons. D. 58 neutrons. E. 20 electrons.
The following table gives numbers of electrons, protons, and neutrons in atoms or ions of a number of elements. Atom or Ion of Element Species A Species B Species C Number of Electrons 9 10 28 Number of Protons 9 7 30 Number of Neutrons 10 7 36 (a) Which of the species are neutral? A B C (b) Which are negatively charged? A B C (c) Which are positively charged? A ...
determine the number of protons, neutrons, and electrons in the following atoms: a. hydrogen atom that has a mass number of 1 b. a sulfur atom that has a mass number of 32