Elements, Ions and the Periodic Table

Question 1

Which of the following is the symbol for potassium?

Accepted Answer

K

Question 2

Which of the following is always the same as the number of protons?

Accepted Answer

atomic number

Question 3

What is the atomic number of the last naturally occurring element on the periodic table?

Accepted Answer

92

Question 4

Ti is the symbol for

Accepted Answer

titanium

Question 5

Which of the following is a property of a non-metal?

Accepted Answer

non-conductive

Question 6

Of Li, C, O, Ne which one has the lowest first ionization energy?

Accepted Answer

Li

Question 7

Which of the following scientists first PROVED the existence of the neutron?

Accepted Answer

Chadwick

Question 8

ALL members of a group have which of the following in common?

Accepted Answer

valence electrons

Question 9

Of Fe, Au, Pb, Os which one is the most dense?

Accepted Answer

Os

Question 10

Of F, Cl, Br, I which one has the greatest electronegativity?

Accepted Answer

F

Question 11

Cations (like Ca2+) involve a __________ of electrons.

Accepted Answer

loss

Question 12

Of Na, Al, Cl, Ar which one has the smallest radius?

Accepted Answer

Cl

Question 13

How many neutrons are there in lithium-7 (atomic #3)?

Accepted Answer

4

Question 14

At room temperature, most elements are in what state?

Accepted Answer

solid

Question 15

Two atoms are isotopes if they have the same number of protons but a different number of

Accepted Answer

neutrons

Questions 15