Periodic Table

Question 1

The elements in the red are the ________.

Accepted Answer

Matalliods

Question 2

What is the symbol for an atom with 8 electrons, 8 neutrons and 8 protons?

Accepted Answer

O

Question 3

What is the atomic mass for an atom with 8 electrons, 8 neutrons and 8 protons?

Accepted Answer

16

Question 4

Beryllium has how many valence electrons?

Accepted Answer

2

Question 5

Which of the following atoms has a larger atomic size?

Accepted Answer

K

Question 6

Which of the following atoms has a larger atomic size?

Accepted Answer

Rb

Question 7

Which of the following is a metalloid?

Accepted Answer

Si

Question 8

The elements to the left of the metalliods are ______.

Accepted Answer

Metals

Question 9

Which of the following atoms has a smallest ionization energy?

Accepted Answer

Y, Rb

Question 10

Alkali Metals are group ____.

Accepted Answer

1

Question 11

Silver is a _______.

Accepted Answer

Transition Metal

Question 12

Elements to the right of the metalloids ______.

Accepted Answer

Nonmetals

Question 13

Oxygen has how many valence electrons?

Accepted Answer

6

Question 14

An atom has an atomic number of 25 and atomic mass of 55, how many protons does it have?

Accepted Answer

25

Question 15

Group 17 is called?

Accepted Answer

Halogens

Question 16

Group 2 is called?

Accepted Answer

Alkaline earth metals

Question 17

In the Bohr model of the atom, what is the atomic mass.

Accepted Answer

14

Question 18

An atom has an atomic number of 25 and atomic mass of 55, how many neutrons does it have?

Accepted Answer

30

Question 19

An atom has an atomic number of 25 and atomic mass of 55, how many electrons does it have?

Accepted Answer

25

Question 20

What is my baby's name?

Accepted Answer

Victoria

Question 21

Electrons in the outer most energy level of an atom are called?

Accepted Answer

Valence Electrons

Questions 21