Build an atom interactive

Last updated over 1 year ago

10 questions

Instructions

On the interactive screen below. Click on ATOM. Make sure the windows for Element, Net charge  and Mass number are open. Complete the following questions using the interactive.
Build each atom first using the interactive.

Library

Build an atom interactive

Last updated over 1 year ago

10 questions

Instructions

On the interactive screen below. Click on ATOM. Make sure the windows for Element, Net charge  and Mass number are open. Complete the following questions using the interactive.
Build each atom first using the interactive.

Question 1

This atom as 5 protons, 5 electrons and 6 neutrons. Which of the following is true?

The atomic number is 6 and the mass number is 11.

The atomic number is 5 and the mass number is 11

The atomic number is 5 and the mass number is 10

The atomic number is 6 and the mass number is 10

Question 2

What is the net charge on an atom that has lost 3 electrons?

0

+3

-3

-1

+1

Question 3

The atomic number of an atom is:

the number of electrons

the number of protons

the number of neutrons

the number of protons plus neutrons

Question 4

The mass number of an atom is:

the number of electrons

the number of protons

the number of neutrons

the number of protons plus neutrons

Question 5

An isotope:

has the same number of protons but different no's of neutrons

has the same number of neutrons but different no's of protons

has the same number of protons but different no's of electrons

has the same number of electrons but different no's of protons

Question 6

If an atom has 6 protons and 7 neutrons, what is its mass number?

13

11

7

6

Question 7

An atom has a net charge of +1. What could be true?

More neutrons than protons.

Equal protons and electrons.

Two more electrons than protons.

One more proton than electron.

Question 8

Which part of an atom is responsible for chemical identity?

Protons

Neutrons

Valence shell

Electrons

Question 9

How many electrons does a neutral atom with 15 protons have?

20

28

7

15

Question 10

10.

What is the electronic configuration of sodium?