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Match it!
Match it! Select the correct answer from the pull down...Good luck!
Atoms of which of the following elements are MOST similar in atomic mass to copper (Cu) atoms?
The number of protons
+25
zinc (Zn)
72 protons, 106 neutrons, 72 electrons
Sodium has one more electron than neon.
increasing atomic number
N, P, As, Sb, Bi
Electron placement determines an atom’s reactivity.
What best explains why sodium is more likely to react with another element than an element such as neon?
The number of protons
+25
zinc (Zn)
72 protons, 106 neutrons, 72 electrons
Sodium has one more electron than neon.
increasing atomic number
N, P, As, Sb, Bi
Electron placement determines an atom’s reactivity.
Which of the following list the elements in order, from those having the fewest protons to those having the greatest number of protons?
The number of protons
+25
zinc (Zn)
72 protons, 106 neutrons, 72 electrons
Sodium has one more electron than neon.
increasing atomic number
N, P, As, Sb, Bi
Electron placement determines an atom’s reactivity.
Which following statements is true?
The number of protons
+25
zinc (Zn)
72 protons, 106 neutrons, 72 electrons
Sodium has one more electron than neon.
increasing atomic number
N, P, As, Sb, Bi
Electron placement determines an atom’s reactivity.
How many protons, neutrons, and electrons are present in an atom of hafnium, Hf, with a mass number of 178?
The number of protons
+25
zinc (Zn)
72 protons, 106 neutrons, 72 electrons
Sodium has one more electron than neon.
increasing atomic number
N, P, As, Sb, Bi
Electron placement determines an atom’s reactivity.
An atom has 25 protons, 30 neutrons, and 25 electrons. What is the charge of the atom’s nucleus?
The number of protons
+25
zinc (Zn)
72 protons, 106 neutrons, 72 electrons
Sodium has one more electron than neon.
increasing atomic number
N, P, As, Sb, Bi
Electron placement determines an atom’s reactivity.
A chemist is identifying the elements present in a sample of seawater. What characteristic of an element’s atoms always determines the element’s identity?
The number of protons
+25
zinc (Zn)
72 protons, 106 neutrons, 72 electrons
Sodium has one more electron than neon.
increasing atomic number
N, P, As, Sb, Bi
Electron placement determines an atom’s reactivity.
Elements in a periodic table are arranged from left to right and top to bottom in order of —
The number of protons
+25
zinc (Zn)
72 protons, 106 neutrons, 72 electrons
Sodium has one more electron than neon.
increasing atomic number
N, P, As, Sb, Bi
Electron placement determines an atom’s reactivity.
Check it!